Mark the odd one wrtsyndrome which occur due to failure of segregation of homologous pair of chromosomes during cell division cycle (1)Klinefelter's syndrome (2)Down's syndrome (3)Turner's syndrome 4) Thalassemia
Answers
Answer:(2)Down's syndrome
Explanation: It is due to the presence of extra chromosome no.21. It is also referred as trisomy 21.These individuals have 47 chromosomes instead of having 46.
Normally during ,meiosis there is an equal distribution of chromosomes to each daughter cell.
In trisomy normal separation of chromosomes failed to occur and instead one pair of chromosomes remains together.
The result is that one gamete has both the homologous chromosomes while other gamete is without any chromosome of this number.
Explanation:
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Mark the odd one wrt syndrome which occur due to failure of segregation of homologous pair of chromosomes during cell division cycle (1)Klinefelter's syndrome
(2)Down's syndrome ✅✅✅✅✅
(3)Turner's syndrome
4) Thalassemia
Down's syndrome leads to failure of segregation of homologous.