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4 - Answers - Paull BIO 212 Problem Set#4(15 pts Due on Feb...

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Paull BIO 212 Problem Set #4 (15 pts) Due on Feb. 17/18 1. (1 pt) Describe (in a sentence) what sister chromatids are. Sister Chromatids are identical copies of a single chromosome , attached at the centromere and along the length of the chromosome. 2. (2 pts) a. If the genome content of a diploid cell in G1 phase is represented as 2n, what is the genome content of the cell in G2 phase? 4n b. What is the genome content of the cell after it goes through mitosis? 2n 3. (1 pt) In some organisms, mitosis occurs without cytokinesis occurring. This will result in: a. cells with more than one nucleus b. cells that are unusually small c. cells lacking nuclei d. destruction of chromosomes e. cell cycles lacking an S phase 4. (2pts) Starting with a ferilized egg (zygote), a series of five cell divisions would produce an early embryo with how many cells? 32 5. (2 pts) Match each of these terms with the events associated with them: _ G __sister chromatids separate A. G1 _ D __formation of the mitotic spindle B. S _ H __formation of the cleavage furrow C. G2/ interphase
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