3 kinds of 21. How many total chromosomes are in a germ cell in the ovary of thi
ID: 187600 • Letter: 3
Question
3 kinds of 21. How many total chromosomes are in a germ cell in the ovary of this organism that is in Metaphase of Meiosis 11? How many total chromatids are in a germ cell in the ovary of this organism that is in Metaphase of 22. Meiosis I1? 23. How many total telomeres are in a germ cell in the ovary of this organism that is in Metaphase of Meiosis I12 24. How many total chromosomes are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis 1l? 25. How many total chromatids are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis 11? 26. How many total telomeres are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis l1?Explanation / Answer
A chromosome has two chormatids and hence 4 telomeres for metacentric and sub-metacentric cases, but only 2 telomeres in case of telocentric chromosome. The chromosome number reduces to half only after meiosis II and hence meiosis I remains equational type of cell division. The information here clearly states that the cell has three unique chormosomes, where one is telocentric in nature. Thus, the answers can be found as below:
Answer 21: The cell would contain same number of chromosomes in metaphase II since meiosis I is equational type of cell division. Thus, it would contain 3 chromosomes only.
Answer 22: The cell would contain a total of: 2 chromatids for chromosome 1, 1 chromatid for chromosome 2 and 2 chromatids for chormosome 3 i.e. total 2+1+2 = 5 chromatids.
Answer 23: Each chromatid contains two telomeres. Hence, this cell would contain 5*2=10 chromatids.
Answer 24: The chromosome number still remains same since total cellular division has not taken place, thus this cell would contain a diploid set of 3 chromosomes.
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