NS102-200901-ProblemSet-15

NS102-200901-ProblemSet-15 - NS102 Study Problems Set 15...

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NS102 Study Problems Set 15 The set contains study problems and exam questions from the previous semesters on cellular reproduction, mitosis and meiosis. 1. (Exam Archive) At which phase of the cell division does the DNA synthesis occur? What is the name of the enzyme that catalyzes this dehydration reaction? Answer : S phase. DNA polymerase. 2. (Exam archive) During what stage of mitosis are the chromosomes clearly visible in the cell division? Answer : Prophase 3. During what parts of the cell cycle does each chromosome consist of two chromatids? Answer : From S phase until the beginning of the anaphase in mitosis. 4. The mitotic spindle always distributes chromosome to the daughter cells without an error. But there is occasionally an accident in which the members of o chromosome pair fail to separate. What is the name of this event? Answer: Nondisjunction 5. What is crossing over ? Answer: Exchange of genes between homologous chromosome 6. (Exam Archive) In the mitotic (M) phase of the cell cycle, cytokinesis follows
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This note was uploaded on 12/23/2011 for the course NS 102 taught by Professor Alimetozen during the Spring '09 term at Sabancı University.

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NS102-200901-ProblemSet-15 - NS102 Study Problems Set 15...

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