Dr. Johnson has discovered an amazing species of yeast that can grow on high quantity chocolate bars. He discovered a particular species when chocolate was not available, a diploid cell $(2 n = 32)$ can divide by meiosis producing four haploid spores and the same yeast cell undergoes mitosis, how many chromosomes will each resulting cell contain?

16 a n d 8

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8 a n d 32

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32 a n d 16

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16 a n d 32

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Solution

The correct option is D $16 a n d 32$
The species of yeast cells can grow in the presence of chocolate and increase in number. When the diploid cell (32 chromosomes) is grown in absence of chocolate, the cell performs meiosis and produces four haploid spores with chromosomes 16. The same diploid cell performs mitosis and produces the diploid daughter cells with 32 chromosomes.
Thus, the correct answer is option D.

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