The presence or absence of horns in ruminant livestock species is determined by the polled gene. The polled allele (P) is dominant to the horned allele (p). What genotype(s) would result in an animal being polled (having no horns)?

Answers

Answer 1

Answer:

PP and Pp

Explanation:

The dominant allele "overpowers" the recessive allele, therefore that trait shows. In this case, it is the polled allele. Therefore, the heterozygous pair works. Also, the homozygous pair with only the dominant allele (polled) will of course work since that is the only gene.

Answer 2

The genotype(s) would result in an animal being polled (having no horns) is PP and Pp.

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual possesses in a certain gene or genetic region are also referred to as the genotype.

The genotypes that encode for the polled allele are PP or Pp because the polled gene (P) is dominant over the horned gene (p). Because both of these alleles must be recessive in order for the horned allele to be expressed, the genotype that will carry it is pp.

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Related Questions

Why do they conduct autopsies when someone is murdered •to understand the cause of death •to understand the circumstances of death •to understand the toxicology of the the body •to use as evidence in a trial

Answers

Answer:

Explanation:

An autopsy is a routine procedure, usually conducted to determine a person's cause of death. Toxicology tests are usually ordered when someone is the victim of a crime, dies unexpectedly or dies for no obvious reason. The purpose of those is to determine if the deceased was under the influence.

to understand the cause of death

Complete the sentences by matching the names of trees to the appropriate blanks. To do this, drag the names on the left into the appropriate blanks in the sentences on the right. Match the words in the left column to the appropriate blanks in the sentences on the right. Terms may be used more than once. Make certain you have filled every blank with a term before clicking Submit. 1. Evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 2. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as cedar, elm, and pine. 3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include pine and mango. 4. Deciduous trees lose their leaves seasonally and include trees such as maple and pine.maple
mango
cedar
elm
pine

Answers

Answer:

pine, cedar, and mango,

mango, elm, and maple,

pine and cedar,

maple and elm.

Explanation:

1) Evergreen are seedlings that keep their leaf in all periods and include pine, cedar, and mango trees.

Evergreen is a plant that stays all year round and is still green. There are many various types of juniper plants, including shrubs and trees. Evergreens have many coniferous species (such as fir, hemlock, blue spruce, red cedar), and mango.

2) Hardwoods replicate with petals and also have wide leaves, like mango, elm, and maple.

Hardwoods are created by polymer science in which flowers replicate and have large leaves. A number of plants are nocturnal. Some of the temperate climates lose their leaves each fall as rates drop and inactive in winter, and those of tropical areas will shed the leaf in reaction to temporary or intermittent shortage times.

3) Conifer leaves are stiff and syringe-like in particular, while seedlings are encompassed in cones. The conifers include cedar and pine.

Gymnosperms are conifers. They are cone-bearing seedlings with plant tissues, fruiting trees are all live evergreens.

4) Seasonally, deciduous trees drop their leaves, which include plants such as maple and elm.

Deciduous trees that spend part of each year dropping the leaves. We were also present in warm and subtropical climates all over the globe. Deciduous trees possess large, flat plants that draw a direct sun laser light and necessitate liters of fluids.

1. Evergreens are plants that maintain their leaves in all seasons and include trees such as pine, mango and cedar.

Evergreen plants : They remain green and lives more than one season.

2. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as mango, elm and maple.

Hardwood : They are the matured parts of the plant shoots.

3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include cedar and pine.

Conifers : They bears coned shaped seed plants.

4. Deciduous trees lose their leaves seasonally and include trees such as maple and elm.

Decidous plants : They are flower bearing plants which shed their leaves annually.

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Explore the evidence supporting commonly held beliefs about proteins. 1. Gluten is toxic for everyone and should be avoided — no amount of gluten in the diet is considered safe. 2. Athletes and people who are very physically active need to eat a lot more protein than the average person. 3. Most Americans don't get enough protein in their diet

Answers

Answer:

Support the answer with the third point but mention not too take too much or they'd die.

Explanation:

Proteins are essential for the main physiological processes of life and perform functions in every system of the human body.

A protein’s shape determines its function.

Proteins are composed of amino acid subunits that form polypeptide chains.

Enzymes catalyze biochemical reactions by speeding up chemical reactions, and can either break down their substrate or build larger molecules from their substrate.

The shape of an enzyme’s active site matches the shape of the substrate.

The governments of many countries have regulations that are designed to prevent the accidental introduction of non-native insects in to their countries this is because in these new habitants the non-addictive

Answers

Answer:

These regulations are aimed at protecting natural resources of the harmful effects of invasive species.

Explanation:

The introduction of invasive species such as, for example, insects, plants, mammals, etc., may have devastating effects on a particular area since they have shown to have the potential to disturb the homeostasis of an ecosystem. These invasions may even limit the available resources for higher trophic levels, thereby producing significant ecological impacts. Moreover, invasive insect species can also lead to important economic damages by destroying economically important plants and crops.

Compare the mass of the two objects.

Which statement accurately describes the mass of the watermelon?

The mass of the watermelon is less than 2 kg.
The mass of the watermelon is equal to 2 kg.
The mass of the watermelon is greater than 2 kg.

Answers

Answer:

greater than

Explanation:

the mass of an object is basically how big the watermelon is. usually, watermelons weigh more than 9 kg. imagine going to walmart and picking up a watermelon. at first glance, its purty huge. of course the the mass of an object, the more the weight of said object. since watermelons are pretty big, the overall mass is going to be big as well.

The mass of object is greater than other watermelon.

What is mass of Object?

The mass of an object is basically how big the watermelon is. usually, watermelons weigh more than 9 kg. imagine going to walmart and picking up a watermelon.

At first glance, its purty huge. of course the the mass of an object, the more the weight of said object. since watermelons are pretty big, the overall mass is going to be big as well.

Although weight and mass may appear to be the same thing, they are actually completely different quantities. The total quantity of substance, or "stuff," in an item is its mass. Gravitational pull is what gives a thing weight.

Therefore, The mass of object is greater than other watermelon.

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Ethology is the study of how animals behave towards each other and in response to
their environment.
True
False

Answers

Answer:

True ig.

Explanation:

the science of animal behavior.

the study of human behavior and social organization from a biological perspective.

the answers true, hope that helped

3. Which of these organs is directly involved in
synthesis of red blood cells in an adult?
A. Liver
B. Spleen
C. Bone marrow
D. Lymph nodes​

Answers

*Answer*: C.Bone marrow
*Explanation*: In the human adult, the bone marrow produces all of the red blood cells, 60–70 percent of the white cells (i.e., the granulocytes), and all of the platelets.

Why the answer not A,B&D:

The lymphatic tissues, particularly the thymus, the spleen, and the lymph nodes, produce the lymphocytes (comprising 20–30 percent of the white cells). The reticuloendothelial tissues of the spleen, liver, lymph nodes, and other organs produce the monocytes (4–8 percent of the white cells). The platelets, which are small cellular fragments rather than complete cells, are formed from bits of the cytoplasm of the giant cells (megakaryocytes) of the bone marrow.

Can someone help me please !!

Answers

Answer:

yeah OK I will be there

Which answer below correctly identifies the type of change and the explanation for the separation of the iron with sulfur? physical change because even though a color change occured, each solid maintained its original properties, which could be seen as soon as the magnet was applied physical change because no temperature change was observed, which would be an indicator of chemical change chemical change because a color change was observed, which indicated that a new substance was formed chemical change because the results depended on the interaction of two substances

Answers

Answer:

[tex]\boxed{\mathrm{view \: explanation}}[/tex]

Explanation:

Physical change because even though a color change occured, each solid maintained its original properties, which could be seen as soon as the magnet was applied.

Speration of iron with sulfur will not change the properties of the metals, the magnet can be used to check. The color overall changes.

A physical change where each solid maintained its original properties when the magnet was applied is an explanation for the separation of the iron with sulfur. Therefore, the correct statement is option A.

What is physical change?

The separation of iron from sulfur is an example of physical change. A physical change is a change in the physical state without the change in its chemical composition. The iron and sulfur can be physically mixed together and are both solids.

When a magnet is applied, the iron is attracted towards magnet, thereby, separating itself from the sulfur which is also a physical change, as it only causes a change in the appearance not in the chemical composition.

However, chemical changes are due to a change in the chemical composition of a substance that results in the formation of a new substance.

Therefore, physical change is an explanation for the separation of the iron with sulfur.

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If the surface soil is saturated and precipitation increases, there will be

a. a decrease in the amount of groundwater
b. an increase in the rate of capillarity
c. a decrease in the surface elevation of the lake
d. an increase in the amount of runoff

Answers

The answer would be d.), an increase in the amount of runoff.

Explain why hormones are able to travel through the body but only affect certain cells.


Answers

Answer:

Hormones are able to travel the body but only affect certain cells because only those target cells have receptors for that particular hormone. Some hormones bind to receptors on the surface of target cells. Others enter the cells and bind to receptors in the cytoplasm or nucleus.

Which system cooperates most closely with the endocrine system?

Answers

Answer:

The nervous system

Explanation:

The brain continuously sends instructions to the endocrine system and in return receives feed back from the endocrine glands. Because of thos intimate relationship, the nervous and endocrine systems are referred to as the neuro endocrine system

Transcription of the developmental gene M is influenced by two different proteins: B and H. Studies of single and double mutants generated the following information:
In mutants lacking B, transcription of M does occur
In mutants lacking H, transcription of M does not occur.
In double mutants lacking B and H, transcription of M does occur.
Based on this information, put these genes in order in a developmental pathway. Use arrows and t-bars between the genes as appropriate. Choose the correct identity of each below.
Gene 1 1st Symbol Gene 2 2nd Symbol Outcome

Answers

Answer:

B --I H >> M transcribed

Explanation:  

Reverse genetics is a classical approach used in molecular genetics to elucidate gene function in a signaling gene network. This technique consists of producing loss of function mutations in genes of interest in order to analyze their phenotypic effects in the downstream signaling pathway.  

In this case, the mutation in B didn't affect the expression of the developmental gene M, together with the other mutant lines, this experiment indicates that B is a downstream suppressor of H (since further experiments show that B plays a role in the signaling pathway). Moreover, the mutation in the gene H affects the expression of M, thereby showing that H acts as a downstream activator of M. Finally, B-H double mutants did neither affect the expression of M, thereby showing that M transcription is dependent of the interaction between B and H.

Knowing that proteins B and H interact with each other, and they influence the expression of the M gene, we can propose the following  developmental pathway      B gene  --|  H gene >>  M gene

------------------------------

Gene pathways refer to the regulation of genes expression by turning them on and off. Many genes and proteins might be involved in this process, each of them playing significant roles in the signaling pathway.

Available data:

The transcription of gene M depends on proteins H and BIf protein B is lacking, gene M is transcriptedIf protein H is lackin, gene M is not transcriptedIf B and H are lackin, gene M is transcripted

According to this information, we can assume that,

The mutation in protein B did not influence the transcription of the gene M because even when B is lacking, the gene is transcripted anyway.

However, we can see that H affected M transcription. The mutation in the H protein influenced the gene transcription.

Mutations in proteins H and B did not influence the transcription of the M gene because, in the absence of both proteins, the gene was expressed.

Probably proteins B and H interact with each other, and this interaction influences the M gene transcription.

The developmental pathway is then as follows,

B gene  --|  H gene >>  M gene

------------------------------------

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a) What effects would a drier-than average summer have on a pond

ecosystem?


(b) How is this different from the effects

resulting from draining the pond?

Answers

Answer:would cause the pond to be a little more empty because of evaporation and the lack of replacement

Explanation:

Q.17 Which of the following cell types would you expect to be abundant with endoplasmic
reticulum and Golgi bodies?
I. Plasma B cells (produce antibodies)
II. Adipose cells (store fats)
III. Islet of Langerhans cells (secrete insulin)
IV. Red blood cells (transport oxygen)
A) I and II only
C) I and III only
B) III and IV only
D) II and III only​

Answers

Answer: D.

The  E. reticulum and Golgi bodies are concerned with secretion and synthesis of molecular substances e.g protein , lipids and steroid. Therefore these cellular organelles should contain   Plasma B cells  and  Islets of Langerhans.  for protein  hormone synthesis(insulin) and antibodies production

Explanation:

Two example of exothermic reaction in our daily life

Answers

Answer:

a burning candle

Iron rusting are both examples of exothermic reactions in our life

Explanation:

Answer:

lighting a candle

Ice Cubes. (When water freezes into ice cubes, the energy is released in the form of heat)

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Which are ways that many countries transport surface waters

Answers

Answer: Most of the surface water is transported from one place to another in two ways in general. One way being the pipelines, and the other being the conventional transportation vehicles.

Explanation: pipelines or vehicles

When hydrogen ions are decreased, is the pH higher or
lower?
wi
and for​

Answers

Answer:

The overall concentration of hydrogen ions is inversely related to its pH and can be measured on the pH scale . Therefore, the more hydrogen ions present, the lower the pH; conversely, the fewer hydrogen ions, the higher the pH.

Can someone help me with this :)

Answers

Answer:

mutualism

Explanation:

they both benefit from each other or both mutually help each other

mutualism is your answer

Which of these is an autosomal recessive disorder?

Answers

Answer:

what are the options?

Explanation:

Examples of autosomal recessive disorders are :

Cystic fibrosis

Sickle cell anemia 

Tay Sachs disease

Answer:

Huntington’s disease

Explanation:

It was the answer between

A. Huntington’s Disease

B. Cystic fibrosis

C. Muscular Dystrophy

D. Sickle-cell anemia

In each of the scenarios, an individual heterozygous for the indicated gene or genes is crossed with an identical heterozygous individual. Predict the number of different phenotypes that would be observed among the progeny of such a cross.

Scenario 1: R is completely dominant to r.
Scenario 2: R is incompletely dominant to r.
Scenario 3: R and s are completely dominant to rand s, respectively: R and S are linked by 10 m.u. and don't interact with each other.
Scenario 4: Genes R and S perform the same finction: R and S are completely dominant to r and s, respectivley' and R and S are unliked.
Scenario 5: R and S are completely dominant to r and s, respectively; R and S are unlinked show dominant epistasis.

Answers

Oi como você está? Decênio 1:

Plants use sunlight to convert nutrients into energy.what form of energy transfer is taking place?

Answers

Answer:

The RADIANT energy of the Sun is converted into CHEMICAL energy by the plants.

Explanation:

The RADIANT energy of then sun is converted into chemical energy by the plants.

The answer is solar energy
Since plants use the solar energy captured by the chlorophyll and converts that solar energy into chemical energy (nutrients).

Assignment: lab report

Diffusion across a semi permeable membrane

Paragraph plz

Answers

Answer:

This is the movement of molecules and ions from one medium to another,based on the concentration gradients, diffusion distant and area exposed. The plasma membrane is made up of phospholipid-bi-layer, to regulate what passes through.

However,because most of the molecules that diffuses across the membrane are small,non-polar, the bi -layer can not restrain their movements. O2, CO2 and lipids cross this barrier with ease by simple diffusion. However, polar molecules are restricted from passing through..

Explanation:

Most rain Falls where on earth

Answers

Answer:

areas near the equator

Explanation:

because they receive sunlight thorought the year by which there is much evaporation where by water vapour condenses and much rain falls

________1. The part of a photosystem that absorb light energy is its:
A. Thylakoid lumen C. Reaction center
B. Pigment –building protein D. Antenna complexes

Answers

Answer:

A. thylakoid lumen

Explanation:

option A is correct answer

How many cells does meiosis produce

Answers

Answer: Four daughter cells

Please help me please


Use Figure 1 Tay-Sachs Disease Pedigree to answer the following questions.



a.Interpret what the Roman numerals in the pedigree diagram represent.


b.Interpret the genotypes of the parents in this diagram.


c.If a person who does not carry the Tay-Sachs disease gene marries offspring II4, what are the possible genotypes for their children?

Answers

Answer:

Please see the answer below

Explanation:

a. The roman numerals represent the various generations in the pedigree.

    I represents first generation

   II represents the second generation

b. The half shaded square and circle representing the parents means that both of them are carriers for the trait in question. Tay-Sachs disease is an autosomal recessive inheritance, assuming the trait is represented by the allele a, the gentoypes of the parents would be Aa and Aa respectively.

c. Still on the assumption that the disease is represented by the allele a. If offpsring II4 which happens to be free of the Tay-Sachs allele marries a person that also does not carry the Tay-Sachs disease gene, the cross will be as shown below.

AA   x   AA = AA, AA, AA, and AA.

All the children would be free from the Tay-Sach's allele. That is, they will be homozygous normal.

Part A:

The roman numerals in the pedigree diagram represent are :

   I = represents first generation

  II = represents the second generation

Part B:

The genotypes of the parents would be Aa and Aa .

Half-shadowed squares and circles that represent the parent mean that both  are carriers of the characteristics of the problem. TaySachs disease is  autosomal recessive when the trait is represented by the allele a.Part C:The possible genotypes for their children are:

       AA   x   AA = AA, AA, AA, and AA.

All the children would be free from the Tay-Sach's allele.

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The introduction of plastics in to the marine environment has also contributed to what other damages to planetary boundaries. Mark all that

apply

a. Biodiversity loss due to marine animals which are killed through entagling in or consuming plastic waste which reaches the ocean.

b. Biomagnification of mercury pollution in to the food chain through microplastics which absorb the mercury and are then

consumed.

c. An increase in ocean acidification through plastics leeching low pH contaminants in to the water.

d. An increase in carbon dioxide emissions which contribute to climate change through the use of fossil fuels in producing and

shipping plastic products.

Answers

Answer:

Option-A,B and D

Explanation:

Plastic pollution is one of the major threat to the ecosystem on Earth. The increased amount of plastic in the ocean has affected the aquatic ecosystem as it is the cause of the increased number of aquatic animals.

The animals consume the floating plastic of the ocean or get entangled in plastic waste.

The consumed plastic waste becomes a threat to these individuals. The microplastic consumed by the fishes, crabs can disrupt the food chain as it can cause biomagnification.

The plastic products production and transport to various parts of the world also cause harm as these activities involve the use of fossil fuels which leads to an increase in the concentration of carbon dioxide.

Thus, the selected options are correct.

When blood glucose levels rise above the normal range, the pancreas secretes ________, but when blood glucose levels fall below the normal range, the pancreas secretes ________. a.insulin; glucagon b.epinephrine; glucagon c.glucagon; insulin d.epinephrine; insulin e.glucagon; glycogen

Answers

glucose level increase, insulin is secreted.

glucose level decrease, glucagon is secreted

A 10 kg bowling ball is lifted from the ground to a height of 1 meter. Assuming the bowling alley is on Earth, which type of potential energy is stored in a ball and why?

Answers

Answer:

961.052

Explanation:

Mass x gravity x height

Other Questions
Which equation is equivalent to (2x^2+4x-7)(x-3) What is the name of the organic molecule modeled below? A propane B propene C propyne Many smartphones, especially those of the LTE-enabled persuasion, have earned a bad rap for exceptionally bad battery life. Battery life between charges for the Motorola Droid Razr Max averages 20 hours when the primary use is talk time and 7 hours when the Internet applications (The wall Street Journal, March 7, 2012).Since the mean hours for talk time usage is greater than the mean hours for Internet usage, the question was raised as to whether the variance in hours of usage is also greater when the primary use Sample data showing battery hours of use for the two applications follows:Primary use talking:35.8 22.2 4.0 32.6 3.5 42.58.0 3.8 30.0 12.8 10.3 35.5Primary use Internet:24.0 12.5 36.4 1.9 9.95.4 1.0 15.2 4.0 4.7a. Formulate hypotheses about the two population variances that can be used to determine if the population variance in battery hours of use is greater for the talk time application.H1:21_____Ha:22_____b. What are the standard deviations of battery hours of use for the two samples? Round your answers to two decimal places.S1_____S2_____c. Conduct the hypothesis test and compute the p-value.- The value of _____- P-value is _____ Can you help me please Mike worked for Frank's Pizza as a driver and was an agent. His duties consisted of making deliveries along a designated route. One day Mike decided to see his girlfriend, Jackie, who lived 50 miles off his pizza route. While driving to his girlfriend's, Mike injured a pedestrian, Chuck. The accident was caused by Mike's negligent driving. Chuck is now suing both Mike and Frank's for personal injuries. Under the circumstancesA. Frank's is never liable for the negligent torts of its agents.B. 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Write an equation of a line that passes through the following two points: (4,-6) and (2,8). A circle is centered at I(0,0). The point T(5,8) is on the circle.Where does the point Z(-[tex]-\sqrt{15}, \sqrt{74}[/tex] lie? The Mayflower compact was not precedent in for the founding fathers as a creative the US Constitution. True False MULTIPLE CHOICE / Will Impact On Other Homeschoolers / Will Mark BrainliestRyan never understood how he could lose to his brother in a bicycle race every single time. Even though James was the older brother, Ryan was taller and stronger. It didnt add up in Ryans mindhe should be the victor. After several sleepless nights trying to figure it out, he decided to get his brothers advice."It's because youre afraid of losing," James said.Ryan realized that his brother was right. During every single race, he had been focused on not losing. Instead, he now knew, he needed to simply focus on giving it his all. Ryan needed to go out there and race his race without overthinking the outcome.How does the point of view contribute to the passage?A. It causes the reader to doubt Ryan as a character.B. It allows the reader to watch Ryans character progress.C. It allows the reader to know the feelings of Ryans brother.D. It causes the reader to wonder about Ryans past. What was a result of the use of chemical weapons during World War I? Which of these ideas did you include in your response?Select all that apply.Whether the two sources agree with one another orcontradict one anotherWhether each source is reliableThat Washington's account has more detailsThat both sources discuss the fact that British troopspanickedDone ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually guess on my questions. In which quadrant does the point (-5, -21) lie? A. Quadrant IV B. Quadrant I C. Quadrant III D. 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