Difficulty: Easy

Average Score: 100%

Which of the following statements is true regarding the difference between meiosis and mitosis?

Rationale

Meiosis creates half the number of chromosomes as mitosis.

Meiosis, a type of cell division, results in four daughter cells each with half the number of chromosomes of the parent cell. This is fundamentally different from mitosis, which results in two daughter cells each with the same number of chromosomes as the parent cell.

A (Meiosis creates half the number of chromosomes as mitosis) CORRECT

This statement is correct. Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells, each with half the number of chromosomes of the parent cell. This differs from mitosis, where the two resulting daughter cells each maintain the same number of chromosomes as the parent cell. This reduction in chromosome number is crucial for sexual reproduction, as it allows for the combination of genetic material from two parents.

B (Meiosis only happens in stem cells) YOUR ANSWER

This statement is incorrect. Meiosis does not occur only in stem cells. It actually occurs in germ cells, which are specific types of cells in sexually reproducing organisms that give rise to eggs and sperm. Stem cells, on the other hand, have the ability to divide and differentiate into various cell types, and typically undergo mitosis, not meiosis.

C (Meiosis occurs with RNA, and mitosis occurs with DNA) YOUR ANSWER

This statement is incorrect. Both meiosis and mitosis involve the replication and division of DNA, not RNA. During both processes, the DNA in the parent cell is copied and then divided to create daughter cells. RNA is involved in protein synthesis, but it is not the main molecular participant in cell division.

D (Meiosis occurs in all cells, but some of those cells choose to go through meiosis) YOUR ANSWER

This statement is incorrect. Meiosis does not occur in all cells. It only occurs in germ cells in sexually reproducing organisms. Most cells in an organism undergo mitosis for growth and repair purposes. The statement also seems to imply that cells can choose between meiosis and mitosis, which is not accurate. Whether a cell undergoes meiosis or mitosis is determined by its type and function, not by choice.

Conclusion

Meiosis and mitosis are two different types of cell division processes. The key difference between them is that meiosis results in daughter cells with half the number of chromosomes of the parent cell, while mitosis results in daughter cells with the same number of chromosomes as the parent. Misconceptions about the types of cells that undergo these processes and the molecules involved can lead to incorrect understanding of these fundamental biological processes.

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