BIO315H5 Study Guide - Final Guide: Cdc25, P21, Ataxia Telangiectasia

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18 Apr 2016

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This is a comparison between mitosis and meiosis. Meiosis is a specialized form of nuclear division. Take a cell that is diploid and generate haploid cells from them so it undergoes two rounds of division to have the number of chromosomes. You start off up here where you actually have. Dna from mother and father and there is one round dna replication, meiotic s phase that precedes meiosis i. During meiosis i the paternal and maternal homologs that have be duplicated, pair up and they then segregate into two separate daughter cells. You will see as they pair up, they cross over. Non- sister chromatids can genetically recombine and cross over and shuffle information between maternal and paternal. You start off with 2n, meiotic division produces. I where homologs are separated to two daughter cells. Meiosis i you have m2, sister chromatids come apart, end result you get from one diploid cell, 4 haploid cells.

Related Questions

Which of the following statements are false about the comparison between mitosis and meiosis? Select all. that apply.

1.Two cytokinesis events occur in mitosis but only one in meiosis

2.Meiosis results in half the number of homologous chromosome pairs as the original cell whereas mitosis has the same number as the original cell

3. Mitosis occurs in somatic cells while meiosis only occurs in germ cells

4.Both haploid and diploid cells undergo mitosis and meiosis

5.Both mitosis and meiosis have one round of DNA replication in the preceding Interphase period

6. Chromosomes undergo disjunction in mitosis but not in meiosis

7.Meiosis leads to a reductive division in the number of chromosomes whereas mitosis does not

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Determine if the following events occur during Mitosis, Meiosis I, Meiosis II, Mitosis and Meiosis, Mitosis and Meiosis I, or Mitosis and Meiosis II. (Answers may be used once, more than once or not at all. Be as accurate as possible with your answer.)

___ 1. The chromosome number is reduced by half.

___ 2. The amount of DNA in the cell is twice the amount of a normal diploid cell in G1.

___ 3. DNA is replicated during S phase.

___ 4. Homologous chromosomes separate.

___ 5. Sister chromatids separate.

___ 6. Chromosomes condense and align along the metaphase plate.

___ 7. Homologous chromosomes align and undergo crossing over.

___ 8. Has one round of division per round of DNA replication.

___ 9. The number of chromatids is equal to the number of chromosomes of a diploid cell in G1.

___ 10. Tetrads align on the metaphase plate.

a. Mitosis and Meiosis I only

b. Both Mitosis and Meiosis

c. Meiosis II only

d. Mitosis and Meiosis II only

e. Mitosis only

f. Meiosis I only

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Which of the following statements are false about the comparison between mitosis and meiosis? Select all. that apply. Multiple answers: You can select more than one option A Two cytokinesis events occur in mitosis but only one in meiosis B Meiosis results in half the number of homologous chromosome pairs as the original cell whereas mitosis has the same number as the original cell C Mitosis occurs in somatic cells while meiosis only occurs in germ cells D Both haploid and diploid cells undergo mitosis and meiosis E Both mitosis and meiosis have one round of DNA replication in the preceding Interphase period F Chromosomes undergo disjunction in mitosis but not in meiosis G Meiosis leads to a reductive division in the number of chromosomes whereas mitosis does not Unanswered

BIO315H5 Study Guide - Final Guide: Cdc25, P21, Ataxia Telangiectasia

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