Câu 6: Gà có 2n =78. Vào kỳ trung gian, sau khi xảy ra tự nhân đôi, số nhiễm sắc thể trong mỗi tế bào là:
A. 78 NST đơn. B. 78 NST kép. C. 156 NST đơn. D. 156 NST kép.

Câu 7: Ở người (2n = 46), số NST trong 1 tế bào tại kì giữa của nguyên phân là:
A. 23 NST đơn. B. 46 NST kép. C. 46 NST đơn. D. 23 NST kép.

Câu 8: Ở ruồi giấm, có bộ NST 2n = 8 vào kỳ sau của nguyên phân trong một tế bào có:
A. 8 NST đơn. B. 16 NST đơn. C. 8 NST kép. D. 16 NST kép.

Answers

Answer 1

Answer: 6A 7D 8B

Explanation:


Related Questions

Prior to the industrial revolution in the mid-1800s, a species of moth had light-colored wings speckled with small black spots. This coloration camouflaged the moths resting on the birch trees growing in their native habitat, since birch bark has similar coloring. In the early 1900s, this changed as dark soot produced by industrial pollution coated birch trees such that the trees lost their speckled coloring. Years later, it was observed that the moths of this species had changed from being light and speckled to being solid black. Which is the most plausible reason for this change

Answers

Answer:

The dark colored moths were due to a genetic mutation, and were more than likely present before the Industrial Revolution. Their fitness was low because predators could easily see them on the light-colored trees. They would be eaten before they could reproduce and pass on their genetic mutation. After the trees became darkened by soot, the darker colored moths now had the survival advantage, able to "hide" from predators. The lighter colored moths became more visible to predators, and the advantage shifted. Now, the light colored moths were more visible to predators, were eaten, and didn't have the chance to reproduce. The darker moths with the mutation had the survival advantage, blending in with the soot-covered trees, and were able to reproduce at higher rates, passing the mutation on to later generations.

Which autoimmune disease results in the destruction of beta cells in the
pancreas?
type 1 diabetes

pernicious anemia

celiac disease

rheumatoid arthritis

Answers

Type 1 Diabetes would he the correct answer.

The term bycatch or incidental catch refers to ________. non-target species that are caught along with commercial species species harvested for industrial purposes species raised in aquaculture settings species caught as part of traditional fisheries krill and other shellfish

Answers

Answer:

The correct answer is ''non-target species that are caught along with commercial species''

Explanation:

Bycatch refers to bycatch organisms that are not targeted by the fishery. Occurs inadvertently in fishing gear, all fisheries have some unwanted bycatch. Species with little or no commercial value, juvenile stages, or discarded gravid females of the target species (s) are generally included here. These incidental catches can be marginal when fishing is carried out with selective or very substantial gear, when the gear used indiscriminately catches everything that comes along its route. In marine fisheries, it causes injury or death to mammals, birds, turtles, fish, elasmobranchs, and invertebrates.

Why do grasshoppers blend with the grass or bush?

Answers

Because they’re green. grasshopper are also pretty small.
because of camouflage grass hoppers easily blend in with grass brush trees and ext because they are green

Look at the branching tree diagram below.

A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.

Which group of organisms evolved after dogs?

Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles

Answers

Answer:

both cats and marsupials

Answer:   Both Amphibians and Reptiles

Explanation: I took the test and got it, so.....

PLEASE HELP MAX POINTS AND BRAINLIEST
Which of the following statements best proves that the law of conservation of mass is obeyed during photosynthesis?

a. The starting total number of oxygen atoms in carbon dioxide is equal to the ending total number of oxygen atoms in glucose.

b. The starting total number of oxygen atoms in carbon dioxide gas is equal to the ending total number of oxygen atoms in glucose and oxygen.

c. The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction.

d. The total mass of glucose and carbon dioxide formed from photosynthesis is equal to the total mass of oxygen and water used up during the reaction.

Answers

c. The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction. (right answer i believe)

The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction.

The reaction is given by.

CO_2+H_2O—⟩C_6H_12O_6+O_2

Based on the cell theory, which of the following is true?
O All cells are too small to be seen.
O All living things are made of cells.
OSmall organisms have more cells than large organisms.
Large organisms have larger cells than small organisms.

Answers

Answer:

all living things are made of cells

Answer:

all living things are made of cells

Explanation:

The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.

describe in detail how enzymes function using pectinase as an example

Answers

Answer:

Pectinase is an enzyme that breaks down pectin, a polysaccharide found in plant cell walls. Therefore, pectinase enzymes are commonly used in processes involving the degradation of plant materials, such as speeding up the extraction of fruit juice from fruit, including apples and sapota

a) What is the earth's path around the sun called? b) How long does it take for Earth to complete a complete circuit around the Sun? c) Name one planet that is closer to the Sun than Earth and another one that is further away. .​

Answers

A) orbit
B) 365.25
C) mercury and Uranus respectively
Planet Earth's orbit around the sun, it's called Orbit.

---

It takes Earth 23.934 hours to complete a rotation on its axis and 365.26 days to complete an orbit around the sun — our days and years on Earth are defined by these gyrations.

---

Kid-Friendly Neptune

It's the last of the planets in our solar system. It's more than 30 times as far from the Sun as Earth is. Neptune is very similar to Uranus

Visible light comes from which one of the sun's layers?
O A. The radiative zone
B. The corona
C. The convection zone
D. The photosphere
O E. The core

Answers

Answer:

The correct answer is photosphere.

Explanation:

Visible light comes from the layer known as the photosphere.

The Sun's photosphere is the layer that emits visible light. The Sun's atmosphere has seven layers: The core, or the Sun's interior.  The radiative zone. The convective zone. The photosphere or the visible surface. The Chromosphere. And the corona, the outermost layer.

Visible light comes from one of the sun's layers called the photosphere, which is in option D, as the photosphere is the visible surface of the sun and is the layer from which most of the sun's visible light is emitted.

The sun consists of several layers, and each layer is with distinct characteristics. such as the innermost region, have the core, followed by the radiative zone, the convection zone, the photosphere, the chromosphere, and finally, the outermost layer called the corona. In the core, nuclear fusion takes place, and as a result, enormous energy is released.

Learn more about the sun layer here.

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A functional corpus luteum should be found on the ______ day of a woman's menstrual cycle.
Question 24 options:



20th



10th



5th



1st

Answers

Answer:

it should be on 5th day I could be wrong

Explanation:

I don't have no explanation

Cerebrospinal fluid (CSF) is formed by capillary knots called the ________________________, which hangs inside the ________________________ of the brain. Ordinarily, CSF flows from the lateral ventricles into the ____________ ventricle and then through the _______________ into the fourth ventricle. Some of the fluid continues down the ________________________ of the spinal cord, but most of it circulates into the ________________________ by passing through three tiny openings in the walls of the ________________________. As a rule, CSF is formed and drained back into the venous blood at the same rate. If its drainage is blocked, a condition called ________________________ occurs, which results in increased pressure on the brain.

Answers

Answer:

1. Choroid Plexuses

2. Ventricles

3. third

4. Cerebral Aqueduct

5. Central Canal

6. Subarachnoid space

7. Forth Ventricle

8. Hydrocephalus

Explanation:

Cerebrospinal fluid formed by capillary knots called Choroid Plexuses which is hanged inside ventricles. There are four ventricles in which CFS flows from lateral to third and from cerebral aqueduct to forth ventricle. The meninges covers spinal cord which extends more inferiority to form a sac from which cerebrospinal fluid can be withdrawn without damage to spinal chord.

name the fluid which is produced by sebaceous gland​

Answers

Answer:

Sebum

Explanation:

The sebaceous gland produces sebum, an oily, waxy substance. Sebum lubricates the skin and hair of mammals.

Hope this Helps! :)

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Which of the following products is an example of innovation and technology in plant science?
A prepotted herb garden
A potted fern
The use of GPS data
USDA hardiness zones

Answers

Explanation:

A prepotted herb garden is the answer

hope this helps you

have a nice day:)

The purpose of Mendel's experiments with dihybrid crosses was to determine
whether:
A. an F2 generation could be produced from the Fi offspring.
B. one of two traits could be transformed by DNA.
O c. one trait would affect how another is inherited.
D. traits are controlled by more than one gene.

Answers

Answer:

C. one trait would affect how another is inherited

Explanation:

Genetic Code
Project: Asking Questions about the Genetic Code
Active
Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network
folder. Upload each file separately.

Answers

Answer:

Following are the steps to the given points:

Explanation:

The instructor has described the current task upload process.The teacher helped children with all resources necessary again for the task.Every learner needs to create a document to upload a project and then select a task from the folder.To add a file, a learner should click the add-on button.

15 POINTS PLUS BRAINLIEST IF ANSWERED IN 5 MINS

The use of fossil fuels is a concern because it can lead to which of the following?

A polluted waters

B eutrophication

C global warming

D increased runoff

Answers

Answer:

A

Explanation:

if any oil get in water it can pollute it all ruining the water and it's a danger to animals

A child is suffering from indigestion and was given a dose milk of magnesia explain why

Answers

Answer:

Magnesia is a base.

Explanation:

When you get indigestion its generally because of the over production of Hydrocloric acid in the stomach which is neutralized by consuming a basic compound like milk of magnesia.

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A sample of gold has a mass of 38,6 grams and a volume of 2 cm What is the density of gold?

Answers

19.3g/cm^3 . With formula p=m/v

Which of the following is a flowering plant?
Fern
Horsetail
Orchid
Both A and B

Answers

Answer:

Orchids

step by step explanation:

Orchid is a flowering plant. So, the correct option is C.

What are Flowering plants?

Angiosperms, or flowering plants, are a category of plants that generate flowers as a component of their reproductive processes. With over 300,000 recognised species, they are the biggest and most varied group of plants. Flowering plants range across sizes from tiny herbs to massive trees and can be found in nearly every region on the planet, from deserts to rainforests, oceans to mountaintops.

Flowering plants are economically and ecologically significant because they provide humans with food, fiber, medicine, and ornamental value while also functioning as crucial components of many ecosystems.

Orchids are an extensive and widespread blooming plant family, with over 25,000 species found worldwide. They are well-known for their spectacular, fragrant flowers that come in a broad range of forms, sizes, and colors.

Therefore, the correct option is C.

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In an experiment to investigate a factor affecting photosynthesis, a leaf of a potted plant which had been kept in the dark overnight was covered with aluminum foil as shown in the diagram below 1. Aluminium foil The set up was kept in sunlight for three hours after which a food test was carried out on the leaf. (a) Which factor was being investigated in the experiment? b) What food test was carried out? (i) State the results of the food test (ii) Account for the results in c (i) above​

Answers

Answer:

Photosynthetic activity.

Explanation:

The photosynthetic activity of the plant was being investigated in the experiment and no photosynthesis will occur because the aluminium foil reflect 95% of sunlight. Starch test is the food test that was carried out in the experiment. Starch from plants is broken down into its constituent sugar molecules by the plant body in order to provide energy to the tissues so if there is no photosynthesis occurs, the plant body uses starch so decrease occur in the concentration of the starch molecules when the starch food test will occur.

How does the Gulf Stream affect London?
O
A. It moves warm water north from the Gulf of Mexico during the winter, keeping the temperature constant year round.
0
B. The moving water causes lower air pressure which holds less moisture and reduces the precipitation that London
receives.
C. It moves warm water north from the Gulf of Mexico, making London warmer than it should be at its latitude.
D. It moves cool water north from the Gulf of Mexico, making London colder than it should be at its latitude.

Answers

Answer:

The Gulf Stream affects London because C. It moves warm water north from the Gulf of Mexico, making London warmer than it should be at its latitude.

Explanation:

If it weren't for the Gulf Stream, London would have the same climate as Canada rather than New York. This is why latitude is not the only factor for an area's average temperature throughout a certain time of a year.

A scientist lives near a wind farm and is wondering about the environmental effects of the wind turbines. They ________ that the turbines make a sound like faint airplane engines and also that there are far fewer meadowlarks living near the windfarm than lived there were before the windfarm was built.

Answers

Answer:

Due to sound, population is decrease.

Explanation:

Due to noise of the wind turbine, there is decrease in population of meadowlarks in that region which is the only adverse effect of wind turbine. This wind turbine produces clean energy and produces no pollution like energy produce from burning of coal. This migration of meadowlarks can imbalance the ecosystem that has a great effect on the surrounding area.

Which best describes a difference between transcription and DNA
replication?

Answers

Answer:

DNA replication involves synthesis of DNA molecules, while transcription is a process that involves synthesis of RNA molecules. In both processes, DNA acts as template and provides information for synthesis of new daughter DNA or RNA strand.

Explanation:

Please helppp!!! it’s of biologyyyy

Answers

Answer:

Im sorry i dont know the answer !!!

Explanation:

1. C (Both cells and tissue)
2. D (Protozoa)
3. A (Blood)
4. B (Virus)
5. B (Ribosome)
6. B (46)
7. A (Saturation)

Define Aerobic

Thank you! :)

Answers

Answer:

Aerobics is a type of physical activity that combines rhythmic aerobic exercise with stretching and strength training exercises to improve overall fitness.

 

~OAmalOHopeO

If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is

Answers

Answer:

binary fission

Explanation:

Binary fission is the main type of reproduction of prokaryotic organisms. In binary fission, the prokaryotic cell first duplicates its DNA and then divides into two cells, each one receiving one complete DNA molecule. Since binary fission is a type of asexual reproduction, this process increases the prevalence of beneficial mutations in a bacterial population. Moreover, transduction refers to the process by which a virus transfers genetic information from one bacterium to another bacterium. Conjugation is also a sexual mode of transfer of DNA from a donor (F+) to a recipient (F−) bacterial cell by direct cell-to-cell contact. Finally, transformation refers to the transfer of genetic material by which bacteria take up exogenous DNA from the environment and integrate it in their genomes.

which of the prey's cells are most likely affected by the poison

Answers

Answer:

Muscle cells are most likely affected by the poison.

In 1970, Frye and Edidin published research describing the mobility of plasma membrane proteins. They fused mouse and human cells together, creating a hybrid cell, and then examined the localization of mouse and human proteins over time. Initially mouse and human proteins were each restricted to one-half of the heterokaryon, but over time the mouse and human proteins mixed, with each being present over the entire cell surface. What technique did Frye and Edidin likely use to examine the mouse and human proteins

Answers

Answer:

The answer is "fluorescent microscopy".

Explanation:

A microscope featuring fluorescence is just the same as a conventional light microscope with additional features. Conventional microscopy employs visible light (400-700 nanometers) to illuminate and generate an enlarged image data. Scientists use this highly sensitive, precise, dependable, extensively to see the location of chemicals in tissues and macrophages in organs.

Which of the following animals has a solitary lifestyle ? A.sika deer B.elephant C. zebra D.rhino

Answers

Answer:

A sika deer

my ans is right or wrong

Answer: A: Sika Deer

Explanation: Adult males are solitary for most of the time and will band together sometimes.

Other Questions
The dotplot below displays the difference in scores for 18 games between a high school soccer team and its opponent.A dotplot titled difference in Score. A number line going from negative 2 to 4 is labeled Team score minus opponent score. Negative 2, 1; negative 1, 2; 0, 2; 1, 3; 2, 6; 3, 3; 4, 1.Which of the following is the best explanation for the dots at 1?In one game, the team beat the opponent by 1 goal.In two games, the team beat the opponent by 1 goal.In one game, the team lost to the opponent by 1 goal.In two games, the team lost to the opponent by 1 goal. x(x+3)(x+3)=0 Plz I need this fast! ng vua u tin ca nc php l ai ? Looking at Diana's photos on a social networking site, Simon assumes that she is an extravert. When they meet for the first time, Simon elicits a talkative and energetic response from an otherwise quiet and dull Diana. This scenario most likely exemplifies ________. Use the figure to find the radius. A competitive firm operating in the short run is maximizing profits and just breaking even. Its costs include a monthly license fee of $100 that is imposed by the state and must be paid for as long as the firm is in existence. The license fee is now raised to $150. To continue to maximize profits in the short run, the firm should: Question 2 options: a) increase output. b) increase price. c) not change output. d) reduce output. Why are road accidents at high speeds very much worse than road accidents at low speeds? Light of the same wavelength passes through two diffraction gratings. One grating has 4000 lines/cm, and the other one has 6000 lines/cm. Which grating will spread the light through a larger angle in the first-order pattern If the cost of the beginning work in process inventory is $85,000, costs of goods manufactured is $960,000, direct materials cost is $344,000, direct labor cost is $224,000, and overhead cost is $329,000, calculate the ending work in process inventory. which statement best describes the polarity of the molecule Sil4a. it is polar, because the bond polarities add together in a tetrahedral molecule b. It is non-polar, because the bond polarities cancel each other out in a tetrahedral moleculec. it is non-polar, because the bonds between silicon (si) and iodine (I) are not polard. it is polar, because the bond polarities add together in a trigonal-planar molecule What were male citizens of ancient Athens expected to do? A hiker in an isolated area encountered a cross-country skier who had broken her leg. The hiker created a makeshift sled and began pulling the skier to the nearest road. As the hiker was pulling her across the ice of a lake, the ice gave way and they went into the water. The hiker was unable to get out of the water and drowned. The skier was able to pull herself to shore and eventually was rescued. However, she suffered severe hypothermia and lost some of her toes to frostbite as a result of being in the water. Does the skier have a cause of action for damages against the hiker's estate A 4-year-old boy presents to your office with watery nonbloody diarrhea for the last three months. He has occasional abdominal pain prior to the onset of the diarrhea and his mother noted worsening flatulence, especially after meal times. Mom denies any recent travel or camping and the patient does not go to school or daycare. On exam, he is 60th percentile for weight and height (similar to his last well-child check), appears well, and has a normal abdominal exam. What is the most likely diagnosis Define mean and median for a set of data Megan fails to see any connection between how hard she works and the size of her annual pay raises. Consequently, she no longer puts much effort into her job, even though she really wants a big raise. This best illustrates the importance of ________ in the operant conditioning of work habits. Group of answer choices A baker finds several new recipes to try. Of the new recipes, there are 11 for cookies, 10 for muffins, and 4 for cakes. If the baker selects a recipe at random, what is the probability the recipe is for a cake? The population of Americans age 55 and older as a percentage of the total population is approximated by the function f(t) = 10.72(0.9t + 10)^0.3 (0 Nu mnh ph nh ca mnh sau v xt tnh ng sai ca mnh ph nh: xR:x^{2} 1 She is a very smart girl; it's not at all surprising that she gets such good grades (Besides) (Again) (therefore) (contrary) Parallel lines: Solve for Y