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Crossing over does not occur in meiosis II because the homologous chromosomes have already exchanged genetic material during meiosis I. In meiosis II, the sister chromatids separate without further genetic exchange.

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5mo ago

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Is crossing over unique to meiosis?

Yes. Crossover only occurs in prophase of meiosis I. Becuase it does not occur in mitosis, all the cells in our body are supposed to have the same genetic information (of course, excluding the cases where somatic mutations occur, such as in cancer).


What happens in meiosis I that does not occur in meiosis I I?

DNA is copied.


Meiosis II is similar to which process?

Meiosis II is identical to Mitosis. Meiosis is split into two stages, Meiosis I and Meiosis II. Meiosis I is similar to mitosis however the cells resulting from it have half as many chromosomes as the parent cell.


What are the differences between metaphase I and metaphase II in meiosis?

In metaphase I of meiosis, homologous chromosomes line up in pairs at the center of the cell, while in metaphase II, individual chromosomes line up at the center. Additionally, in metaphase I, crossing over occurs between homologous chromosomes, leading to genetic variation, whereas in metaphase II, no crossing over occurs.


How many cells are the result of meiosis II?

Meiosis II results in four daughter cells, each with half the number of chromosomes as the original cell. These cells are genetically diverse due to crossing over in meiosis I and random alignment of chromosomes in both meiosis I and II.


Name the steps in meiosis?

Meiosis consists of two main stages: meiosis I and meiosis II. Meiosis I involves crossing over between homologous chromosomes, followed by separation of homologous chromosomes, resulting in two haploid cells. Then, meiosis II involves separation of sister chromatids, producing a total of four haploid daughter cells.


List the key difference between meiosis 1 and 2?

Meiosis I involves homologous chromosomes pairing up and crossing over, leading to genetic recombination. The resulting daughter cells are haploid with replicated chromosomes. In contrast, meiosis II is more similar to mitosis where the duplicated chromosomes separate, resulting in four haploid daughter cells.


What are the different stages of meiosis and clever I be it's event?

Meiosis consists of two main stages: meiosis I and meiosis II. In meiosis I, homologous chromosomes pair up and exchange genetic material through crossing over in prophase I, leading to genetic variation. This is followed by the separation of homologous chromosomes during anaphase I. Meiosis II is similar to mitosis but involves the separation of sister chromatids, resulting in haploid daughter cells.


Does crossing over occur during prophase 1?

Yes, only prophase 1 of meiosis. Crossing over occurs when homologous pairs of chromosomes (tetrads) line up in prophase I. In prophase II there are no tetrads left, only sister chromatids, so there is nothing there to recombine with.


What are the event in miosis?

Meiosis consists of two main stages: meiosis I and meiosis II. In meiosis I, homologous chromosomes pair and exchange genetic material through crossing over, followed by the separation of these pairs into two daughter cells. Meiosis II resembles mitosis, where the sister chromatids of each chromosome are separated into four genetically diverse haploid cells. This process is essential for sexual reproduction, contributing to genetic variation in offspring.


Are Meiosis I and Meiosis II identical steps that follow each other?

If you mean meiosis I and meiosis II, then no they are not identical, but meiosis II does follow meiosis I.


What stage of meiosis II is skipped?

The stage of meiosis II that is skipped is interphase. Meiosis II immediately follows meiosis I and consists of prophase II, metaphase II, anaphase II, and telophase II.