2. You are studying a diploid species with a haploid n value of 8. A. How many t

Question

2. You are studying a diploid species with a haploid n value of 8. A. How many total chromosomes would you expect this species to have during interphase of mitosis? B. How many total chromosomes are present at the metaphase plate of a mitotic cell. C. How many total chromatids are present at the metaphase II plate of a cell in meiosis D. How many total chromatids are present at the metaphase I plate of a cell in meiosis. E. How many total chromatids are present during the Leptotene phase? F. What is the n value of a cell in prophase I during meiosis? G. What is the n value of a cell in prophase II during meiosis? H. What is the n value of a cell in prophase I of mitosis?

Explanation / Answer

2.A. The answer is 8, because segregatio is occurs only in division phase.
B. The answer is 8. As the chromosome replicated in S phase, still those chromatids joined at centromere so counted as one.
C. As the chromosome replicated in S phase, each chromosome has two chromatids, so the answer is 8 *2 = 16.
D. As the chromosome replicated in S phase, each chromosome has two chromatids, so the answer is 8 *2 = 16.
E. As the chromosome replicated in S phase, each chromosome has two chromatids, so the answer is 8 *2 = 16.
F. The answer is 2n because chromsome segregation occurs in Anaphase I.
G. The answer is n, becuase because chromsome segregation occurs in Anaphase I.
H. The answer is 2n beacuse chromatid segreagation occrus in Anaphase, as the chromatide segration occurs in mitosis, even though after segregation in Anaphase, the n value wont change.

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