3. The diagram below shows an important phase of prophase I of meiosis. Which of the following correctly describes what is occurring in the diagram? a. A frameshift mutation which the genetics have been altered p. Separation of the sister chromatids c. Metaphase – the chromosomes are lining up in the middle of the cell d. Crossing over – where alleles and genetic information is exchanged J BU O w

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1a. What is chromosomal formation called? 2b. When specifically was it formed? 3c. Would it be found in a haploid or diploid cell?

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What is necessary to produce a chromosome bridge? O a. centromeres b.only mitosis, centromeres, fusion O c. only meiosis O d.centromeres, fusion O e. fusion

Answer Space In the answer space on the right, draw in the chromosomes of cell A. Your drawing should show the usual result of the process of meiosis.

2. Why do the daughter cells produced from meiosis I need to divide again in meiosis II?

2. An organism is 2n=4 with genotype AaBbEe. Genes A and B are close together on the larger chromosome, and gene E is on the smaller chromosome. a. Using a vertical metaphase plate, draw the two independent orientations of this AaBbEe cell in Metaphase I of Meiosis. b. Label alleles on all chromatids. c. Write the alleles in each possible gamete on the lines below each orientation. OR O'Q ( Gametes:

The major way that meiosis II differs from mitosis is that O A. in meiosis II, the homologous sister chromatids align at the metaphase plate as a tetrad. in meiosis II, the cells are haploid. В. in meiosis II, a pair of sister chromatids move to the pole. in meiosis II, the homologues separate. D.

During meiosis both recombinant and parental type chromatids are created. Which of the outcomes below best represents a pool of gametes from a single chromosome? A || C |||||||||||| || E |||||||||||| A. A OB.C OC. E B D оос O D.D OE. B