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5.Molecular Basis of Inheritance
normal
Whereas the number of chromosomes is reduced to half in first reduction division of meiosis, then what is the need for second mitotic division
A
For the segregation of replicated chromosomes
B
For equal distribution of haploid chromosomes
C
For the formation of four gametes
D
For equal distribution of genes on chromosomes
Solution
(a) The reduction of $DNA$ content does not occur in meiosis-$I$. Truely haploid nuclei in terms of $DNA$ contents as well as chromosomes number are formed in meiosis-$II$.
When the chromatids of each chromosome are separated in to different nuclei. Thus meiosis-$II$ is necessary.
Standard 12
Biology
