The trisomic condition of Down's syndrome ari | vedclass

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Question

(C) $Down's$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ ($trisomy$ $21$).This condition

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Non-disjunction

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(C) $Down's$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ ($trisomy$ $21$).This condition occurs due to the failure of homologous chromosomes to separate during meiosis,a process known as non-disjunction.As a result,one gamete receives an extra chromosome,and upon fertilization,the zygote develops the $trisomic$ condition.

The trisomic condition of $Down's$ syndrome arises due to:

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