Question

If we ignore the effect of crossing over, how many different haploid cells arise by meiosis in a diploid cell having 2n = 12? 8 16 32 64

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Answer

Correct option: D (64)

To determine how many distinct haploid cells can form through meiosis in a diploid cell with a chromosome number of $2n = 12$, we use the formula:

$$ 2^n $$

where $n$ is the haploid number of chromosomes.

Given that a diploid cell has 12 chromosomes, the haploid number $(n)$ is:

$$ n = \frac{12}{2} = 6 $$.

Using the formula $$ 2^n $$, we substitute $n = 6$:

$$ 2^6 = 64 $$.

Thus, without accounting for crossing over, 64 different haploid cells can arise from meiosis in this scenario.


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