Explain why human eggs all contain one X chromosome

Answers

Answer 1
Answer:

Answer:

because the mother has two x chromosomes so either way it will get passed down whether the father give an x chromosome or not


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What would happen if cells could not reproduce?
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After meiosis there area. two haploid cells.
b. two haploid gametes.
c. four haploid cells.
d. four haploid gametes.

Answers

After meiosis 2 there are 4 haploid gametes

Meiosis is responsible for making sex cells only

Final answer:

After meiosis, there are four haploid cells which can develop into gametes. This process is crucial for sexual reproduction in eukaryotic organisms.

Explanation:

After meiosis, the correct answer is that there are four haploid cells. During this process, one diploid cell (which has two sets of chromosomes) undergoes two rounds of cell division to create four haploid cells (each with one set of chromosomes). These cells can then develop into gametes, or sex cells, which can join together during fertilization to form a new diploid organism. This is a fundamental aspect of sexual reproduction in eukaryotic organisms.

Learn more about meiosis here:

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Cells have particular structures that perform specific jobs. These structures are known as _______.

Answers

The answer is organelles a specialized part of a cell having some specific function. Organelles is a cell organ specialized part of a cell having some specific function; a cell organ. Also it is a structure or part that is enclosed within its own membrane inside a cell and has a particular function.

Which of the following shows fossils as evidence of continental drift?A. Limestone layers in the Appalachian Mountains of North America were exactly the same as the limestone in Scotland's highlands
B. Mesosaursus, an ancient reptile, had been discovered in South America and Africa.
C. Glacial deposits and rock surfaces scoured and polished by glaciers are found in South America, India, Africa, and Australia.
D. One type of rock found in Brazil matched a rock found in western Africa

Answers

Glacial deposits and rock surfaces scoured and polished by glaciers are found in South America, India, Africa and Australia shows fossils as evidence of continental drift. The correct option among all the options that are given in the question is the third option or option "C".Also climatic evidence is another evidence in this direction.

In the cell cycle, cytokinesis occurs at the end of

Answers

Answer:

The answer is Telophase

Explanation:

Cytokinesis involves the physical separation of the cytoplasm into two daughter cells during cell division. In both mitosis and meiosis occur at the end of telophase, which is the reversal of the processes that took place during the prophase and promethaphase. That is, everything returns to the beginning and the process is repeated.

Cytokinesis occurs after Mitosis. Mitosis is the cell division into two identical nuclei, having the same number and type of chromosomes. Cytokinesis is the division of the cytoplasm that creates two daughter cells that are equal genetically and in size.

List and describe at least six things that
differentiate living and non-living things.?

Answers

Difference Between Living & Non-Living Things.

Answer:

To List Is:

i) Excretion

ii) Sensitivity

iii) Growth

iv) Reproduction

v) Respiration

vi) Nutrition

Explanation: Description:

(a) Excretion: Is the process by which living things remove metabolic waste substances from the body.

  • Living things excrete whiles non-living things do not excrete.

(b) Sensitivity: Is theprocess by which living things responds to stimuli or touch.

  • Living things responds to stimuli whiles non-living things do not respond to stimuli.

(c) Growth: Is the process by which living things increases in weight, height or size.

  • Living things grow whiles non-living things do not grow.

(d) Reproduction: Is the process by which living things produce young ones of their own.

  • Living things reproduce whiles non-living things do not reproduce.

(e) Respiration: Is the process by which living things breathe or respire [carbon dioxide/oxygen] in order to obtain energy for their activities.

  • Living things breathe whiles non-living things do not respire.

(f) Nutrition: Is the process by which living things obtain or make food or feed.

  • Living things feed whiles non-living things do not feed.

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______are short and stout.
a. Endomorphs
b. Ectomorphs
c. Mesomorphs

Answers

Answer: A -endomorphs


Endomorphs usually have a shorter build and they gain fat very easily. Thus endomorphs are short and stout. They have very heavy arms. They have strong muscles in the upper leg.

Answer:

The correct answer is option A, Endomorphs

Explanation:

There are three body types in human beings and the characteristics features of all three body types is as follows:

1. Ectomorph - Skinny appearance, Small chest, joints,  bones and buttocks, Less body fat (without exercising), long limbs and Gains weight (build muscles) with difficulty

2. Mesomosph - Heavy body, Strong build, Gains muscles  and fat easily, have Athletic body of rectangular shape

3. Endomorph –  Soft  and round body, short limbs, Gains muscles  and fat easily

Thus considering the features of all three body types, it is clear that  Endomorphs are short and stout