The answer for question 18 is A i.e. 4 only. The answer for 19 is C i.e. 5 and 9

Question

The answer for question 18 is A i.e. 4 only. The answer for 19 is C i.e. 5 and 9. However I don’t know the reasoning behind this answer , can someone explain this ??? The answer for question 18 is A i.e. 4 only. The answer for 19 is C i.e. 5 and 9. However I don’t know the reasoning behind this answer , can someone explain this ??? odbioation to answer this question 48 C) 96 D) 12 E)24 or the ivision next three questions, refer to the following graphs that illustrate DNA content in a cell over time for two different types of cell 8 .3 10 Time Time 18) 18) Which stage(s) correspond to a haploid cell with only one sister chromatid per chromosome? A) 4 only B) 4,5,9, and 10 C) 10 only D) 5 and 9 E) 4 and 10 19) 19) At what stages are sister chromatids separating? A) 9 and 10 B)9 only C) 5 and 9 D) 5 only E) 4, 5,9, and 10

Explanation / Answer

There are two types of cell devision called mitosis and meosis. In all eukaryotic cells the mitosis will takes place. While in the division of gamete cells such as sperm and ovum, the first stage will be haploid. Haploid is the term the cell which have half number of chromosomes. That means haploid cells only have one set of complete chromosomes.

It means only one sister chromatids will seperate in the first division of meosis and two sister chromatids are seprated from each other into two different cells during mitosis and second stage of meosis. This is for maintaing the chromosomal number of each species.

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