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Ans.
Meiosis involves a type of cell division in sexually reproducing organisms that results in formation of four daughter cells from a single parent cell, having half of the genetic material as in parent cell. Meiosis is divided into meiosis I and meiosis II.
In gamete forming cells of humans are diploid cells and have 23 pairs of chromosomes (or 46 chromosomes). Each gamete forming mother cell undergoes meiotic division to form haploid daughter cells or gametes, each with 23 chromosomes.
Thus, the correct answer is 'twenty-three' as there are 23 chromosomes present in human sex cells at the end of meiosis II.
If the frequency of one allele in a population is 0.7, then the frequency of the alternate allele is 0.3.
Allele frequency is determined by dividing the number of times the allele of concern is seen in a population by the total number of copies of all the alleles at that specific genetic locus in the population.
In case all the allele occurs at the same frequencies in sperm cell and eggs cell, and gametes bond together accidentally to produce zygotes, then the Possibility that any two alleles will combine to form a particular genotype equals the product of the allele frequencies.
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