Which of the these combinations result in the expression of a recessive trait?
a. two dominant alleles
b. A Y chromosome
c. two recessive alleles
d. a dominant allele and a recessive allele

Answers

Answer 1
C. Two recessive alleles
Answer 2

The combination of two recessive alleles results in the expression of a recessive trait. So the correct option is C.

What is the law of dominance?

The law of dominance was given by Sir Gregor Mendel. The law states that  ‘In crossing between homozygous organisms for contrasting characters of a pair, only one character of the pair appears in the first generation.’

This law of dominance was the first law of heredity that was proposed from the findings of Mendel. It studies the characters and explains that all characters present in an individual organism are controlled by separate units called factors. These factors are present in pairs.

These pairs can be homozygous or heterozygous. In the case of heterozygous pairs, only one of the factor present will dominate the other. The dominating character is called the dominant character, and the unexpressed character is the recessive character.

The recessive character is latent, but it is transmitted to the offspring in the same manner as the dominant character is transmitted. The recessive character will only be expressed when the offspring receives both copies of the same allele and this results in a homozygous individual.

Therefore the correct option is C.

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Related Questions

PLZZZZZZZZZZZZZZZZ HELP ME THISDUE TODAY AHHH SO STRESS!!!!
Using what you read in today's slides, determine whether you feel each piece of evidence from Elisa is sufficient or insufficient.
Evidence A: Elisa's sleep journal shows that she has gotten, on average, 9 hours of sleep each night for the past month.

1. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient

2.Why? Please explain.

Evidence B: The night before she came into the office, Elisa slept 7 hours.

3. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient

4.Why? Please explain.

Evidence C: Elisa kept a food journal for a month. Her journal shows that each day she ate between 6 and 8 servings of food with starch and between 2 and 4 servings of food with protein every day.

5.Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient

6. Why? Please explain. *

Evidence D: Elisa ate a lot of starch yesterday but still felt tired.

7. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient

8. Why? Please explain.

Evidence E: On the day before she began her journal, Elisa said she always felt tired even though she ate well and slept a lot at night.

9. Would you consider this evidence sufficient or insufficient? *
A. Sufficient
B. Insufficient

10. Why? Please explain. *

Answers

1.a

I would presume this to be sufficent due to the fact that Elisa's sleep journal states that she has gotten 9 hours of sleep for the past month thus she is having the same amount of sleep and there is probably another conclusion.

2.b

this information is not sufficient because there is the only information of the amount of time that she slept the night before she went to the office and there could have been a different amount of time that she slept the days before therefore making this information insufficient.

3:a

this information is sufficient because Elisa states the amount of servings that she eats and tells the number of servings that have either protein or starch.

4.b

this is insufficient evidence because there is no information telling what else Elisa ate and what type of food it was which could have been a factor of her being tired.

5.b

I would consider this evidence as insufficient because Elisa only states that she ate well and slept a lot rather than stating the amount of time that she slept and the type of food that she ate because those can be a factor in her feeling tired.

1. Sufficient because in America on average teens are recommended 8.5 hours of sleep per night

What is an energy releasing process that does not require oxygen

Answers

Answer:

Fermentation is an energy releasing process that does not require oxygen. During fermentation, cells release energy from food without using oxygen.

Explanation:

Answer:

Fermentation

Explanation:

Evidence of what feature is found in South Africa, despite South Africa’s relatively mild climate?
mountains
glaciers
coal fields
tropical plant fossils

Answers

Answer:

glaciers

Explanation:

Answer:it’s B

Explanation:

How does competition affect an ecosystem? Explain in your own words how competition works in an ecosystem.

Answers

Answer:

because animals might not survive and end up extinct :)

Explanation:

Answer:

Competition affects the community structure in an ecosystem and it places evolutionary pressure on the development of adaptations in a population. As a result changes to the competitive forces in an environment can not only affect the ecosystem as a whole, but also the evolutionary history of species.

The style is the female part of the plant how does the style play a role in reproduction​

Answers

i am a little confused

The mode of reproduction that requires a single parent and produces offspring that are genetically the same as the parent is -

asexual reproduction

sexual reproduction

unicellular reproduction

prokaryotic reproduction

Answers

Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique

So the answer is Asexual reproduction

Answer:

Asexual reproduction

Example:

Strawberry plants reproduce asexually through runners in the soil that sprout to create new strawberry plants.

After asexual reproduction, the newly produced organism will look identical to the parent being as only one parent was involved, therefore only one set of genes was introduced not making a genetic differece.

plzzzzzzzzzzzzzz helppppppppppppp

Answers

Answer:

i think its owls and snakes

Explanation:

i hope this helps you :)

Answer:owls and snakes

Explanation:

Why is biodiversity so high in temperate deciduous forests and so low in desert or tundras?

Answers

Temperature deciduous forests occur in mid-latitudes (Figure 4) where cool winters, warm summers, and high year round precipitation occurs (Figure 9). ... Biodiversity is relatively high in this biome due to the niche partitioning allowed by the multiple forest layers.
The deserts and arctic tundra support much smaller biomass of animals than tropical forest because it has smaller vegetation. Tropical forest has a broad range of plants and vegetation causing more animals. ... It can also be protection from other animals.

What is the law that states “energy cannot be created or destroyed it can only change to different forms”?
A.Law of Conservation of Energy

B.Law of Conservation of Matter

C.Law of Gravity

D.Law of Physics

Answers

Answer:

A. Law of Conservation of Energy

Explanation:

The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. ... In other words, energy cannot be created or destroyed.

Law of Conservation of Energy is the law that states energy cannot be created or destroyed it can only change to different forms.

What do you mean by conservation of energy?

The law of conservation of energy states that the amount of energy is neither created nor destroyed. For example, when you roll a toy car down a ramp and it hits a wall, the energy is transferred from kinetic energy to potential energy.

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.

The principle of energy conservation states that energy is neither created nor destroyed. It may transform from one type to another.

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True or False: The pressure of gas cannot vary directly with temperature

Answers

Answer:

true

Explanation:

the pressure of gas is proportional to its temperature (amantons law)

False hope this helps

is paper biotic or abiotic

biotic=living or came from living
abiotic=dead or nonliving


paper fits both because it is from trees but it has been processed what the answer.

Answers

Paper is biotic because it came from trees with benefit from you and me. At witch tree are living.

Study the diagram, which represents the general equation for photosynthesis. What do the letters Y and Z represent? Y - glucose Z - oxygen Y - glucose Z - carbon dioxide Y - carbon dioxide Z - hydrogen Y - carbon dioxide Z - oxygen

Answers

Answer:

The correct answer is Y - glucose, Z - oxygen

Explanation:

In photosynthesis, plants- and also other organisms- take carbon dioxide (CO₂), water (H₂O) and light (which is absorbed by chlorophyll pigments, those give plants their green color), and they convert inorganic materia in organic materia (chemical energy) in form of sugar. The overall process is described by the following global equation:

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

carbon dioxide + water → glucose + oxygen

Answer:

Y & Z

Explanation:

A basin’s youngest rocks are in the ______.

Question 54 options:
please explain your answer or no brainliest

A.center

B.outside

C.underside

D.inside

Answers

Answer:

center

Explanation:

A basin’s youngest rocks are in the center

Which sentence best describes how energy flows through an pyramid?

The organisms at the bottom level provide energy directly to organisms in all the other levels
.
Some energy is transferred from organisms in one level to those in the level above.

Energy is transferred down each level of the energy pyramid.

The energy lost at each level is consumed by organisms in the top level.

Answers

Answer:

The energy lost at each level is consumed by organisms  in the top level.

Explanation:

Energy is transferred down each level of the energy pyramid. So that is the best sentence!

For the first question is that it goes up 1000

The following is an aquatic ecological pyramid.

Which trophic level represents the secondary consumers or the organisms that rely on the herbivores? How does their energy compare to the primary consumers?
B; the secondary consumers have more energy than the primary consumers.
B; the secondary consumers have less energy than the primary consumers.
C; the secondary consumers have more energy than the primary consumers.
C; the secondary consumers have less energy than the primary consumers.

Answers

b because its better

Bird feeders can be found in backyards around the globe. Some people like to watch as the birds flock to the feeders and peck at the seeds. Others may like the idea that they are offering a service by feeding the local birds in their neighborhood. But do bird feeders help native populations of birds? A recent study suggests that bird feeders may do more harm than good by increasing competition for food.

A team of scientists in New Zealand observed that bird feeders may be attracting more invasive, or non-native, birds. They conducted an experiment to see if this observation could be supported with data. The scientists set up 23 bird feeder locations scattered around urban areas. Food in the form of mixed bird seed and bread was offered daily at 11 experiment locations. "Twelve locations were left alone, without food, to serve as a control group. The number of birds that visited each location was counted daily. The study went on for almost two years. After analyzing the data, scientists discovered that the 11 experimental bird feeders attracted two to three times the number of invasive species of birds as the control group feeders. The control group feeders had approximately equal numbers of native and invasive birds visit them. The team of scientists noted that the increase in invasive species may have been due to the food choices that were offered at each feeder. Native birds typically eat fruit, nectar, and insects. Invasive birds were more attracted to the mixed bird seed and bread. The data supported the conclusion that backyard bird feeders were not helping native bird populations and suggested that invasive species are pushing out native species in competition for food.

The team of scientists also noted that they are not suggesting that people stop feeding the birds. They just want people to be aware of the types of food they offer and how often they fill the feeders. Making better choices in backyard feedings may help increase the number of local birds that visit while decreasing visits from invasive species.

Conducting backyard bird feeder experiments is a great way to see which local birds and which invasive birds are in your neighborhood. The more you know about the local bird populations and their food preferences, the better equipped you are to support them in a more positive way.

Question- How did the backyard bird feeders in the article increase competition in that ecosystem? (yes its a lot but 20 points and brainliest to the best answer!)

Answers

Answer:

The backyard bird feeders in the article increased competition in that ecosystem by attracting more invasive birds that push the native birds away from the food. The invasive birds are attached by the mixed birdseed and the bread that the native birds are not used to eating.

Explanation:

Answer:

The backyard bird feeders in the article increased competition in that ecosystem by attracting more invasive birds that push the native birds away from the food. The invasive birds are attached by the mixed birdseed and the bread that the native birds are not used to eating.

Explanation:

thx for the points :)

I’ll give brainliest!!
Please help me fill in the blanks.

Answers

Answer:

Water Cycle

Explanation:

If you look up on google the water cycle it should help.

Sorry I couldn't give you a direct answer the picture is kinda blurry no offense.

someone help me do a debate.

Answers

Answer:

debate an answer

Explanation:

brainliest?

debate what lol. what are you gonna debate on

The base of aquatic energy pyramids are formed by

Group of answer choices

aquatic insects and snails

fish

Plankton

Frogs

Answers

The answer is Plankton.


Phytoplankton and algae form the bases of aquatic food webs.


They are eaten by primary consumers like zooplankton, small fish, and crustaceans. Primary consumers are in turn eaten by fish, small sharks, corals, and baleen whales.

Hope I helped! <3
Yep!!!!! You got the answer

PLZZZZZZZZZZZZZZZZZZZZZZZ HELPME THIS DUE TODAY

1. Where does the body get glucose molecules?

2. Where does the body get amino acids?

3. Where does the body get oxygen?

4. What do you think could happen if the human body doesn’t take in one or all of these molecules? Why do you think this?

Answers

Answer:

1.This energy comes from the food we eat. Our bodies digest the food we eat by mixing it with fluids (acids and enzymes) in the stomach. When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose.

2.Humans can produce 10 of the 20 amino acids. The others must be supplied in the food. Failure to obtain enough of even 1 of the 10 essential amino acids, those that we cannot make, results in degradation of the body's proteins—muscle and so forth—to obtain the one amino acid that is needed.

3.The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. The oxygen-rich blood returns to the heart.

4. If the human body doesn't take in one or all of these molecules we'll simply die or we'll be in severe health issues. We use glucose as a form of energy, if we don't take in any energy we'll die. We need amino acids to help break down food in our body, if we don't we'll be in very severe health issues. And of course we need oxygen to be alive. We need oxygen for respiration and photosynthesis to take place. We also need oxygen to burn the fuel in our body to produce energy.

hope this helps and have a great day:)

The body gets get glucose molecules from ; The digestion of Carbohydrate rich foods like maize. The body gets amino acids from : The digestion of animal proteins like meat The body gets oxygen from the atmosphere When one or all of these molecules are missing in a human body the Human cannot maintain Homeostasis

Glucose molecules are energy carrying molecules that provides the body with the necessary energy that it requires to function properly and a very important source of glucose is Carbohydrate rich foods like maize.

While amino acids are necessary for the proper functioning of the Human system and also a second source of energy. A very important source of the amino acid is animal protein.

When any of these molecules are missing the human body cannot maintain homeostasis which will result in severe health conditions and death.

Hence we can conclude that the body gets glucose from carbohydrate foods, amino acids from animal protein and oxygen from the atmosphere.

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Help!

Describe the flow of energy in this food chain. Be sure to use the names of the organisms and what role they serve in the food chain (producer, consumer, or decomposer). If an organism is a consumer, identify whether it is an herbivore, carnivore, or omnivore.

Answers

Answer:

the tree/plant gets energy from the sun and water. the caterpillar gets food from the tree with converts into energy for the caterpillar, then the bird eats the caterpillar and the bird turns the energy from the caterpillar into more energy

Explanation:

The tree gets energy from the sun which is then able to feed the caterpillar which then the bird eats the caterpillar

The chart shows parts of the body at different levels of organiztion. Which picture can best be used to fill in box S.
The 1st picture is the chart and the other 3 are the answers.
The 1st body is option A
The lungs is option B
The 2nd body is option C

Answers

Answer:   I think that it is option option B

Explanation:

Because the bodie sbasically sum up all of the options that the first chart has. It is missing the lungs so the answer would be option B

Pls mark brainlyest!!!!

Answer:

C.

Explanation:

Because it connects to the heart and it takes the red blood vesels to diffrent parts of the body.

plz mark brainliest!

.
Use the simple food chain below to answer the question about energy transformations.


It takes energy to live; therefore, when the owl eats the rat, the owl does not receive 100% of all the energy the rat consumed during its lifetime. What form of energy is “lost” in the ecosystem?
Thermal energy
Light energy
Electrical energy
Nuclear energy

Answers

Thermal energy because the body heat is not there any more

Answer:

Hello. The answer is Thermal energy

Explanation:

During cell respiration as you know ، besides ATP and CO2 some heat is produced ،too.

This heat is the lost energy.

I hope this help you.

no one helped me so 15 points and brainliest to best answer please i need this done!

Bird feeders can be found in backyards around the globe. Some people like to watch as the birds flock to the feeders and peck at the seeds. Others may like the idea that they are offering a service by feeding the local birds in their neighborhood. But do bird feeders help native populations of birds? A recent study suggests that bird feeders may do more harm than good by increasing competition for food.

A team of scientists in New Zealand observed that bird feeders may be attracting more invasive, or non-native, birds. They conducted an experiment to see if this observation could be supported with data. The scientists set up 23 bird feeder locations scattered around urban areas. Food in the form of mixed bird seed and bread was offered daily at 11 experiment locations. "Twelve locations were left alone, without food, to serve as a control group. The number of birds that visited each location was counted daily. The study went on for almost two years. After analyzing the data, scientists discovered that the 11 experimental bird feeders attracted two to three times the number of invasive species of birds as the control group feeders. The control group feeders had approximately equal numbers of native and invasive birds visit them. The team of scientists noted that the increase in invasive species may have been due to the food choices that were offered at each feeder. Native birds typically eat fruit, nectar, and insects. Invasive birds were more attracted to the mixed bird seed and bread. The data supported the conclusion that backyard bird feeders were not helping native bird populations and suggested that invasive species are pushing out native species in competition for food.

The team of scientists also noted that they are not suggesting that people stop feeding the birds. They just want people to be aware of the types of food they offer and how often they fill the feeders. Making better choices in backyard feedings may help increase the number of local birds that visit while decreasing visits from invasive species.

Conducting backyard bird feeder experiments is a great way to see which local birds and which invasive birds are in your neighborhood. The more you know about the local bird populations and their food preferences, the better equipped you are to support them in a more positive way.

THE QUESTION------ How did the backyard bird feeders in the article increase competition in that ecosystem?

Answers

Answer:

birds don't like loud sounds  and if its in the back yard the cars that go by wont effect the birds wane they take a bath

Explanation:

answer:

the backyard bird feeders in the article increased competition in that ecosystem because when those people put out feeders, it was a competition to the birds as in who would get the best food and also bird feeders usually only supply seeds which not all birds eat. as stated in the passage, native birds typically eat fruit, nectar, and insects, while invasive birds were more attracted to the mixed bird seed and bread. so the competition was that all birds who come by the feeders will not get the food that they may need to survive.

i hope this helped and have a lovely day!! :)

what are 3 challenges an organism would need to overcome to thrive in the deep sea

Answers

Organisms living in the deep ocean must be adapted to survive under extreme pressure, limited light, cold temperatures, and other factors. Organisms living in the deep ocean must survive in a physical environment that is radically different from ocean habitats near the sea surface.

Answer:

They need to adapt to the sea life. You could google this by the way but I'm giving it in my own words unlike the person on top of me.

So,

1. Staying alive and staying in water with right temperature and not too much pressure.

2. Looking to find things to eat.

3. Staying in a place where you won't get killed.

Hope this helps.

Explanation:

Which correctly lists three agents that loosen and carry away rock during the erosion process?

animals, heat, sediment
heat, wind, plants
plants, animals, wind
sediment, heat, plants

Answers

Answer:

Plants animals and wind

Explanation:

the first dude was wrong so this is the right animal, You welcome ^>^

A car travels a distance of 200 meters in 10 seconds. What is the average speed of the car?
This is for science

Answers

Answer: The average speed is 10 m/s.

Please follow me as I am new to Brainly!!

The average speed of the car is 20 meters/sec if the car travels a distance of 200 meters in 10 seconds.

Average speed is the total distance that is covered or traveled by the total amount of time. The mathematical representation of the formula is:

[tex]\overline{v}={\frac{\Delta x}{\Delta t}}[/tex],

here [tex]\overline{v}[/tex] = average speed,

[tex]\Delta x}[/tex] = total distance covered

[tex]{\Delta t}[/tex] = time

Given:

total distance covered = 200 meters

time = 10 seconds

average speed = ?

Solution:

Placing the given values in the mentioned formula for the average speed,

[tex]\overline{v}={\frac{\Delta x}{\Delta t}}\\\\\overline{v}={\frac{200}{10}[/tex]

= 20 m/s

Thus, the correct answer is - 20 m/s.

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PLEASE HELP 5TH GRADE WORK IM RUNNING OUT OF POINTS
I am having difficulty finding a model of a t-cell that displays the organelles of a t-cell and its functions. So please link or create a model of a t-cell.

Answers

Ion know if this is what you want but this is sum that says T cell
Bruh I learned that in 7th grade what ur school doing

Which locations are Carbon pools?
a Ocean
b Atmosphere
c Forests
d Fossil Fuels
e All of the above

25 POINTS PLSSS NEED HELP

Answers

Answer:

d or b because I did it before but I forgot wish ine

Does the volume of gas vary directly with temperature?

Answers

Yes Volume directly varies with temperature.

As we know,

PV= nRT

so it means Volume is directly proportional to Temperature

Yes volume of gas vary directly with temperature
Other Questions
Here is the question. In early colonial america times what type of bread was given to the royalty? What is the impact of the following beliefs and practices on society in South and Southeast Asian societies:Bhakti Movement Sufism Buddhist Monasticism im confused on this worksheet. can somebody help me? What substance makes lemon juice vinegar and soda Why did the American colonists oppose the Stamp Act? What is the 5th triangular number? 1) Paco y Anita son ____.A. ambiciososB. ambiciosas 2) Las profesoras son muy __.A. simpticas B. simpticos 3) Los alumnos son ____.A. buenos B. buenas 4) Los alumnos son ___.A. inteligenteB. Inteligentes A team of scientists think they discovered a new organism while exploring Brazil. Upon bringing the specimen back to their lab in Atlanta, they observe the specimen for several weeks. They take a sample from the specimen to observe it under a microscope and see the sample is composed of many small compartments containing what appears to be nuclei. They shine a bright light to the left of the specimen and observe it slowly turn itself towards the light over multiple days. What further evidence would support that the newly discovered specimen is alive? Divide(2x + 4x2 - 5) by (x + 3). You are in the time signature 4/4. There is a double dotted half note in a measure. How many beats does that double dotted half note receive? A 25.0-g object moving to the right at 20.0 cm/s overtakes and collides elastically with a 10.0-g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision. What is an object? a. An element on a Web page that contains data and procedures for how that item will react when activated b. An element on a Web page that expedites the downloading of Web pages c. An element on a Web page that condenses the amount of space the page uses in a computer's cache d. An element on a Web page that interacts with all programming languages and enables them to function universally with all browsers Which sentence in this autobiography excerpt uses descriptive imagery?I was overseas with the army for the first time. I had never been this farfrom home before, and I missed my family. I wondered how lonely Iwould be. A cold wind blew suddenly, sending a shiver across my skin.O A. A cold wind blew suddenly, sending a shiver across my skin.O B. I was overseas with the army for the first time.O C. I had never been this far from home before, and I missed myfamily.OD. I wondered how lonely I would be.30 POINTShelp fast Which of the following has NOT increased the power of the executive branch over time? A) A national Crisis B) The 22nd amendment C) Bureaucratic rule making (I chose this one, and it was wrong) D) Modern broadcast media technology Why does pencil feel cold in some places? Because Chelsea doesn't get enough sleep at night, she finds that she has trouble concentrating at work or thinking clearly. what body system is Chelsea's lack of sleep affecting? Newton's law of restitution Trying to find the equivalent ratio with lower termsA. 30:36=20: ?B. 21:35=? :20 A survey of 1012 teens found that 25% of students aged 14 to 18 plan to borrow nomoney to pay for college. What's the margin of error for a 95% confidence interval forthe proportion of all students aged 14 to 18 who plan to borrow no money to pay forcollege?