16. Based on the picture below, answer the following T/F questions. Explain your

Question

16. Based on the picture below, answer the following T/F questions. Explain your answer. a. The two chromosomes on the left (#1) are homologous to the chromosomes on the right (#2) b. The picture shows sister chromatids, homologous chromosomes, and different chromosomes. c. There are four total pieces of dsDNA present in this picture. d. There are four centromeres present in this picture. e. There are eight telomeres present in this picture. f. Cohesin and condensin are present and intact. g. CENP-A is present. h. Separase is present and active. 2

Explanation / Answer

a. False. Homologous chromosomes are similar in size. Chromosomes in #1 is larger than chromosomes in #2. So they are not homologous.

b. True. 2 chromosomes in #1 are homologous to each other. 2 chromosomes in #2 are homologous to each other. Chromosomes in #1 are different from chromosomes in #2. When taken separately, each chromosome contains 2 sister chromatids.

c. True. Number of DNA pieces are same as the number of chromosomes.

d. True. Each chromosomes has one centromere. So there are 4 centromeres present in 4 chromosomes.

e. False. One chromosome has 4 telomere. So there are 16 telomere.

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