DIašma membrane 14. How many total chromosomes are in a germ cell in the ovary o
ID: 187590 • Letter: D
Question
DIašma membrane 14. How many total chromosomes are in a germ cell in the ovary of this organism that is in Metaphase of Meiosis 1? 15. How many total chromatids are in a germ cell in the ovary of this organism that is in Metaphase of Meiosis 1? 16. How many total telomeres are in a germ cell in the ovary of this organism that is in Metaphase of Meiosis I? 17. How many total chromosomes are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis 1? 18. How many total chromatids are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis 1? 19. How many total telomeres are in a germ cell in the ovary of this organism that is in Anaphase of Meiosis 1?Explanation / Answer
A germline cell undergoes meiotic cellular division in which the chromosome number reduces to half in the daughter cells as compared to the parent cell. Thus, if the parent diploid cell contains 4n number of chromosomes, the daughter cells will contain only 2n number of chromosomes. It is important to note here that each chromosome contains two chromatids each of which is splitted upon the meiotic division in phase II and thus the daughter cell contains only a single chromatid.
Thus, based upon this information and explanation, considering that the parent germline cell contains 4n chromosomes each with two chromatids i.e. total 4n*2=8 chromatids, the answers can be found as below:
Answer 1: The germline cell in an ovary undergoes meiotic division I and II. if the cell contains 4n number of diploid chromosome, it would have 4n number of chromosomes in metaphase I as well.
Answer 2: Since the reductional division has not taken place in metaphase I, this cell would contain a total of 4n*2=8n chromatids in metaphase I.
Answer 3: Telomeres are the end sequences of the chromatids. Hence, the number of chromatids would be 4 in each chromosome. Thus, this cell would contain 4n*4=16n telomeres.
Answer 4: The anaphase I of this cell still has not undergone reductional division. Hence, this cell would contain 4n chromosomes in anaphase I.
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