Study the diagram of gametogenesis where egg cells and sperm cells
undergo meiosis I and meiosis II. Note the number assigned to each cell.
Identify the number of chromosomes in the different cells, represented
by a circle, by writing the symbol N for haploid and 2N for the diploid.
Write your answers on a separate sheet of paper.​

Answers

Answer 1

A diploid cell undergoes meiosis to produce one egg and 3 polar bodies with 23 chromosomes each.

What happen during the egg formation?

During egg formation in the ovary, Primary oocyte (diploid) having 46 chromosomes undergoes meiosis I to form one secondary oocyte and one first polar body.

Both the secondary oocyte and one polar body are haploid having 23 chromosomes.  Both daughter cells then undergo meiosis II, the first polar body divides to give two polar bodies and the secondary oocyte divides by meiosis II to form one ovum.

Therefore, during egg formation in the reproductive system, a diploid cell (a primary oocyte) undergoes meiosis to produce one egg and 3 polar bodies with 23 chromosomes each.  

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Related Questions

please help will mark brainliest​

Answers

They overgrazed on the parks vegetation and grasses.

In the anatomical position, the face and arms are on the __(1)__ body surface; the buttocks and shoulder blades are on the __(2)__ body surface; and the top of the headis the most __(3)__ part of the body. The ears are __(4)__ to the shoulders and __(5)__ to the nose. The heart is __(6)__ to the vertebral column (spine) and __(7)__ to the lungs. The elbow is __(8)__ to the fingers but __(9)__ to the shoulder. The abdominopelvic cavity is __(10)__ to the thoracic cavity and __(11)__ to the spinal cavity. In humans, the dorsal surface can also be called the __(12)__ surface; however, in quadruped animals, the dorsal surface is the __(13)__ surface.

Answers

1. anterior
2.posterior
3. superior
4. medial
5. superior
6. lateral
7. anterior
8. medial
9. proximal
10. distal
11. inferior
12. anterior
13. posterior

Amalia has the flu, a communicable disease that causes a cough and a runny nose. Which best describes how she likely got it?
She does not exercise.
She has a poor diet.
She touched the doorknob in a classroom.
She inherited it from her parents.

Answers

Answer:

is this multiple choice if not i have a better way of answering the third one like; as someone in her class has the flu the person touched the doorknob ,after a while she also touched it and without washing her hands  she touched her nose then the disease had  entered her body

YOU CAN SIMPLFY IT SINCE IF YOU TO BE IN A TEST YOU CANNOT REMEBER ALL THAT... :)

BUT I TRIED

Explanation:

Answer:

She touched the doorknob in a classroom.

Explanation:

anyone can get a cold By Touching something that was affected, or getting near someone who has been affected.

I hope this helped!

do you think it is right for people to keep animal's in their homes?​

Answers

Answer:

There are many health benefits of owning a pet. They can increase opportunities to exercise, get outside, and socialize. Regular walking or playing with pets can decrease blood pressure, cholesterol levels, and triglyceride levels. Pets can help manage loneliness and depression by giving us companionship.

Answer:

Yes,just yes no explanation

ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD,SINOQUE YANDIEN PUEDEN SER E________.AMENUDO SE DISFRASAN CON NOMBRES QUE PUEDEN SER S________ ,

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

Desafortunadamente, no anexaste opciones o incisos para responder la pregunta. Sin embargo, podemos comentar lo siguiente.

ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD, SINO QUE TAMBIEN PUEDEN SER ENGAÑOSOS. A MENUDO SE DISFRAZAN CON NOMBRES QUE PUEDEN SER SABROSOS.

Es muy importante que seas cuidadoso con los alimentos que consumes como parte de tu alimentación. Muchas empresas, a través de sus marcas, comparten publicidad engañosa para atraer más clientes bajo la promesa de alimentos sabrosos y nutritivos. Y la verdad es que no. Te están engañando.

No hay nada como basar tu dieta diaria en frutas, verduras y un equilibrio entre proteínas, carbohidratos, azúcares naturales y grasas.

Si es necesario, consulta a tu médico o a un nutriólogo para que te expliquen qué tan malo pueden ser los alimentos con muchos químicos.

¿Son sabrosos? Sí, pero también están llenos de sal, grasas, azúcares en excesos que le hacen mucho daño a tu salud.

En México ya existe una ley que obliga a todos los productos colocar unas etiquetas de color negro con blanco en todos los productos con la leyenda: "exceso de sodio," "exceso en grasas," exceso en azúcar."

Esto, con el propósito de que la gente se entere antes de comprarlos.

A group of fibers inside the cell that helps support the cell is the _____.


filament

flagella

microtubule

cytoskeleton

Answers

cytoskeleton, filaments and tubules makeup the cytoskeleton
The cells that help support fibers inside the cell are the Cytoskeleton.

The study of how gene expression is turned on and off and which considers the
interactions between DNA, RNA, proteins, and the environment is called

Answers

Answer:

epigenetics

Explanation:

Epigenetics is the study of how gene expression is turned on and off and which considers the interactions between DNA, RNA, proteins, and the environment .

What is Epigenetics?

Epigenetics is the study of how your behaviors and environment can cause changes that affect the way your genes work.

What are 3 factors that affect epigenetics?

Several lifestyle factors like diet, obesity, physical activity, tobacco smoking, alcohol consumption, environmental pollutants, psychological stress, and working on night shifts.

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Which pie graph is shaded to best represent the approximate percentage of time that humans have existed during Earth’s entire history?

Answers

Answer: I chose D and got it right just always choose the smallest one their hope this helps yall

Explanation:

PLEASE HELP!!!! How do you think cell phones affect attention in class? Describe an experiment you could perform to test your hypothesis. Include your hypothesis, operational definitions of your independent and dependent variables, who your participants would be, and how you would randomly assign them to experimental or control groups.

Answers

Let a portion of students take a test without studying and a portion just chilling on their phone before the test

O daltonismo é um distúrbio moderado ligado ao cromossomo X que se caracteriza pela cegueira para as cores verde e vermelha. Considerando-se o cruzamento de uma muher carreadora do alelo para o daltonismo ao se casar com um homem de visão normal, cuais as chances de as filhas desse casal serem carreadoras é de ?

Answers

Answer:

50%

Explanation:

Olá. Primeiramente é necessário informar que perguntas em português devem ser postadas no campo "world Languagens". Isso porque esse não é o servidor basileiro e sim o servidor americano. Caso contrario, a sua pergunta pode nunca ser respondida e até mesmo excluida do site.

Em segundo lugar, para que seja possivel que você repsonda a essa pergunta você precisará preencher um Quadrado de Punnett, como mostra a figura abaixo.

Como você sabe, as mulheres possuem os cromossomos XX e os homens XY. Como a mulher apresentada na pergunta acima possui o alelo para o daltonismo, mas não apresenta daltonismo, podemos considerar que apenas um dos cromossomos dela possuem esse alelo. O alelo para o daltonismo é recessivo, sendo assim, podemos considerar que essa mulher possui os alelos XDXd. Homem com quem essa mulher se casa, não possui daltonismo, logo os alelos dele são XDY, como mostrado na figura.

Ao preencher o quadrado de Punnett, você verá que existe a possibilidade desse casal possuir duas filhas, uma delas pode possuir os alelos XDXd, igual a mãe e, portanto, ser carreadora do alelo para o daltonismo.

Sendo existe uma chance, em duas filhas desse casal ter uma filha carreadora de daltonismo. Isso é igual a 1/2, que resulta em 0,5, ou 50% de chances de ter uma filha carreadora de daltonismo.

Which of the following is most likely to form when hot magma rises up as tectonic plates move apart below the ocean
1.mid-ocean ridge
2.fault
3.trenches
4.subduction zone

Answers

That would be the fault

Answer:

A. Mid-ocean Ridge.

Explanation:

A mid-ocean ridge a mid-oceanic ridges are underground mountain formed by tectonic plates.

PLEASE HELP WILL MARK BRANLIEST!
Fungi and bacteria are examples of _____:

A. decomposers, B. producers, C. consumers, D. demagorgans

Answers

Answer:

a.  decomposers,

Explanation:

Bacteria and fungi are best classified as decomposers. They decompose the bodies of dead plants and animals.

Explain how this mutation will result in competition within the population that is linked to the idea of survival of the fittest.

Answers

Answer:

Survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing. Darwin borrowed the term from English sociologist and philosopher Herbert Spencer, who first used it in his 1864 book Principles of Biology. (Spencer came up with the phrase only after reading Darwin’s work.)

Herbert Spencer's Principles of Biology (1864) first introduced the expression “survival of the fittest.”

Survival of the fittestQUICK FACTSKEY PEOPLEAlfred Russel WallaceHerbert SpencerRELATED TOPICSAdaptationNatural selectionDarwinian fitnessUse in evolutionary theory

Darwin did not consider the process of evolution as the survival of the fittest; he regarded it as survival of the fitter, because the “struggle for existence” (a term he took from English economist and demographer Thomas Malthus) is relative and thus not absolute. Instead, the winners with respect to species within ecosystems could become losers with a change of circumstances. For example, fossil evidence supports the notion that the mammoth (Mammuthus) was more fit during the most recent ice age (which ended roughly 11,700 years ago), but it became less fit as humans hunted it and the world’s climate warmed; fossil evidence suggests that the mammoth succumbed to extinction a few thousand years later.

Darwin’s theory of evolution by natural selection entailed three crucial elements: variation, reproduction, and heritability. Variations in the physical features of organisms that tend to benefit an individual (or a species) in the struggle for existence are preserved and passed on (or selected), because the individuals (or species) that have them tend to survive. The success or failure of a given variation is not known when it emerges; it is known only retrospectively, after organisms that possess it either grow and mature and pass it to their own offspring or fail to mature and reproduce.

Importantly, Darwin was influenced by the thinking of English physicist and mathematician Isaac Newton, whose system emphasized experimentation, mathematics, and logic over subjective sense experience. During Darwin’s time, his evolutionary theory was an attempt to construct a similar system for the living world, a frontier not yet crossed in the biological sciences.

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Some philosophers and scientists have suggested that the notion of survival of the fittest is an example of circular reasoning—that is, a tautology (a statement framed in such a way that it cannot be falsified without inconsistency). In tautologies, any true statements that follow are a matter of definition. Indeed, describing those that survive as the fittest is similar to stating that those that survive survive. British philosopher Karl Popper considered “survival of the fittest” self-evident at first; however, he changed his mind after realizing that Darwin posited variation axiomatically; that is, Darwin noted that all individuals did not start with the same set of characters (or traits). Therefore, the forces affecting survival did not weigh on individuals and species equally; there were always variations, some of which would prove favourable and confer fitness over others.

Explanation:

please give this answer as brainliest answer

Breeding a dog that is small and well suited for hunting small game is the result of…
A- evolution
B-natural selection
C-artificial selection
D-adaptation

Answers

Answer:

d

Explanation:

adaptation allows the dog to evolve for small game

The similarity of the structures shown in the picture suggests that the organisms_______

1) have a common ancestor
2) all grew at different rates
3) live for a long time
4) evolved slowly

Answers

1 because they all had traits that had come form somthing

water is warmers by the sun and ?

Answers

Answer:and then it evaporates into the atmosphere

Explanation:


In an energy pyramid, up to 10% of energy is transferred between trophic levels. Suppose the producer level has 50,000 J. Approximately how much energy is available to the next level, the primary consumer, in this energy pyramid?

Answers

Answer: 5,000

Explanation:So it is the 10% law, this is an example 10,000 for the first animal, 1,000 for the second and 100 for the third. So for 50,000 it would be 5,000 for the next

A sample of human tissue has just been delivered to your evidence room for a crime scene


What type of tissue is this?


Please help will mark BRAINLIEST and make sure to explain!!

Answers

Odd question as there is multiple types of tissue that could be tested. Is there any additional information for the question?

Most likely though, it’s epithelial tissue.
The plates keep rubbing so it would be the equator

Help Brainliest to anyone who answers me ASAP!!!
Which scenario is an example of a negative feedback loop?
A.
When body temperature increases, sweat is produced as a cooling agent to lower body temperature.
B.
In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation.
C.
Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy.
D.
A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps more heat in Earth’s atmosphere.

Answers

Answer:

A)

Explanation:

Question has been asked before so I know the answer.

Identify one waste product that is released during exercise. Explain how this waste product leaves the body. B I UVC​

Answers

Answer:

Carbon dioxide: It diffuses into the blood and is carried to the lungs, where it is exhaled. As you exercise, carbon dioxide is carried to the lungs, where it is exhaled Carbon dioxide is exhaled.

Identify one additional factor besides the plant seedlings and containers that should be held constant in this experiment.

Answers

Answer:

83hrhiddtifrd of r

Explanation:

hsejrndbhsuia b rb

Which of the following is a subsystem of an organism? Please explain and I give you 5 stars.
A.cell
B.organ system
C.tissue
D.all of the above

Answers

Answer:

D

Explanation:

In multicellular organisms, the body is a system of multiple, interacting subsystems. Subsystems are groups of cells that work together to form tissues. Interactions are limited to the circulatory, excretory, digestive, respiratory, muscular, and nervous systems.

D all of the above. I know for sure organ systems and tissues are subsystems. Since subsystems are made up of cells I would include that as well.

Javier investigated what happens when Earth's plates meet. He found that as Earth's plates meet at plate boundaries and interact, they move in three different ways. The ways they interact produce changes on land and on the ocean floor. What are the kinds of boundaries that plates form? Label each plate boundary with the correct type from the choices below.

Answers

Answer:

I. Divergent

II. Convergent

III. Transforming

Explanation:  

The crust is the outermost layer of the earth. It is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.

Boundaries types:

I. Divergent: New crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.

II. Convergent. Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one. In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices. The thicker and older plate subduces under the other plate. The Himalayas and Los Andes are examples of these collisions. Also, collisions create volcanic arches and continental arches.

III. Transforming. The plates slide laterally with each other, and they are usually called faults. It is associated, in general, with the oceanic ridge, although it might also occur in the continental plate. No rocky material is either destroyed or formed. When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur. The movement breaks the crust and originates pronounced fractures. The San Andrés fault is an example of this plate ridges.

The kinds of boundaries that plates form is the fact that seismic activity takes place at the three known types of plate boundaries called divergent, convergent, and transform.

What happens when Earth's plates meet?If two tectonic plates meet, they create a kind of convergent plate boundary.

One converging plates often shift or move below the other, in  an act known as subduction.

The new magma (molten rock) tend to increase and may erupt to create volcanoes.

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Why is the percentage of food eaten a good
number to use? Explain.
I
Intro

Answers

Answer:

The percentage of food gives an idea about the food availability for the species of organisms. If the food percentage is high the species is observed to be more successful; on the other hand if the percentage is low the species is found to shrink in numbers.

hope it helps

An oak tree falls in a forest. It kills some ants and stops grass from growing
below it. What type of disturbance is this?
O A. Secondary
O B. Primary
O C. Cyclical
O D. Small

Answers

Answer:

This is O D. Small type of disturbance.

Explanation:

Small-scale biological disturbance.

Answer:

O D. small

Explanation:

In ecology a disturbance is an event that causes a change in the environment. There are small-scale disturbances and high-magnitude disturbances. Small-scale disturbances are typically driven by biological processes -for example the fall of a tree- while high magnitude disturbances are typically driven by physical processes -for example, storms-. Small-scale disturbances as single-tree blowdowns are very important  to create and maintain diversity and heterogeneity in the forest.

Hope this helps! can i get brainlest please Thanks!

Identify the main floral organs
of a flower.

Answers

petals, sepals, stamen, and carpel

Which of the following is not a concern associated with fossil fuel dependence?

A. global warming
B. rising prices
C. increased competition
D.increased development

Please select the best answer from the choices provided

Answers

Answer:

D. increased development

Explanation:

I compared answers with others and found out d is correct. trust me :)

Atividade de Português

Answers

Answer:

1- C

2-

3- C

4- C

Explanation:

Of the following, which statement is false?

A) Biotic factors are living things
B) A biome is a major regional or global community of organisms
C) An example of an abiotic factor is sunlight
D) Heterotrophs can make their own food
E) Other:

Answers

Answer:

D) Heterotrophs can make their own food

Answer:

d is your answer it's definitely d

Without knowing the genetic differences of the birds, how can we know that cardinals and finches are likely more closely related to each other than cardinals and finches are to woodpeckers? Cardinals and finches live in more similar habitats. There is no difference in their relatedness; because they are all birds, they all evolved at the same time from a common ancestor. Cardinals and finches have more morphological similarities. Fossil records show that cardinals have been around longer than woodpeckers and sparrows.

Answers

Answer:

The correct answer is - Cardinals and finches have more morphological similarities.

Explanation:

To find out the relatedness of the different species or organisms one can use genetic mapping to find precise relatedness, however, if one can not find the genetic differences of the organism one can use the morphological similarities and differences to find out how closely they are related.

Homologous structures and analogous structures are two major morphological characters to find how closely related cardinals and finches are than cardinals and finches are to woodpeckers.

Other Questions
Consider the following argument from analogy. According our rules for appraising analogical reasoning, if a subsequent consideration strengthens the argument, answer a. Answer b if a consideration weakens the argument. Answer c if a consideration does not affect the argument.Bill has taken three history courses and found them very stimulating and valuable. So he signs up for another one, confidently expecting that it too will be worthwhile.25. Suppose that his previous history courses were in ancient history, modern European history, and American history.26. Suppose that his previous history courses had all been taught by the same professor that is scheduled to teach the present one.27. Suppose that his previous history courses all had been taught by Professor Smith, and the present one is taught by professor Jones.28. Suppose that Bill had found his three previous history courses to be the most exciting intellectual experiences of his life.29. Suppose that his previous history courses had all met at 9:00am, and the present one is scheduled to meet at 9:00am also.30. Suppose that, in addition to the three history courses previously taken, Bill also had taken and enjoyed courses in anthropology, economics, political science, and sociology. Possible answers, 35, 30, 90,64 Use the following list of balances for Paul's Guitar Shop to answer the following question. Guitar Sales 24,800, Depreciation expense 2,000, Wage expense 10,950, Rent 500, Music Lesson Revenue 3,000, Interest expense 500, Supplies expense 500, Utilities expense 400. What is the TOTAL value of EXPENSES? * A 56 kg pole vaulter falls from rest from a height of 5.1 m onto a foam rubber pad. The pole vaulter comes to rest 0.29 s after landing on the pad.Required:a. Calculate the athlete's velocity just before reaching the padb. Calculate the constant force exerted on the pole vaulter due to the collision who can help me pleaseee???? URGENT.True or false. The marketing department is the most important function in business. What risk is most likely to happen when using wind as an energy source Slapshot Company makes ice hockey sticks. Last week, direct materials (wood, paint, Kevlar, and resin) costing $26,000 were put into production. Direct labor of $20,000 (10 workers x 100 hours x $20 per hour) was incurred. Manufacturing overhead equaled $52,000. By the end of the week, the company had manufactured 2,000 hockey stick. Explain how? Clearwater Electronics is planning to open an office in Shanghai , China , and the HR department has been asked to benchmark the compensation practices of other multinational organizations in the region . Why is benchmarking a first good step to developing a compensation and benefits plan to attract and retain nes employees who will contribute to the organization ? What is the role of transport proteins inactive transport?A. They move molecules against the gradient.B. They collect molecules of water to assist in the process.C. They store the ATP needed to power the process. play help me on this Watch help videoSolve for 2. Round to the nearest tenth, if necessary.5-3O52N Which of the following functions best describes this graph?A. Y = (x-3)(x + 4)B. y = x^2-5x +6C. y = x^2 -9x+18D. y - (x+3)(x +6) which angles are adjacent to 12 ? select all that apply Write the equation of the line in slope-intercept form Find the volume of the prism. Question 22 of 24What would be the effect of including details from daily life in South Americain a story?The story would appeal more to readers outside of South America.B. The story would feel realistic to a South American reader.C. The story would remind readers of the conflict between religions.D. The story would have a more somber tone.OSUSM Which of the following best explains the division of Africa shown in the map?O Most of Africa was controlled by indigenous peoples who rebelled against colonial powers.O Many Eastern nations sought influence in the world by founding colonies in Africa.O Colonial powers had acquired African territory by using methods such as annexation and overthrow.O European nations had colonized an equal amount of territory throughout the African continent. If the half life of iridium-182 is 15 years, how much of a 3 gram sample is left after 2 half-lives?A) .57 gramsB) .70 grams C) 2.25 grams D) .75 grams Given that (1,4) is on the graph f(x), find the corresponding points of a function 1/4f(x)