In humans,sometimes during gametogenesis,sex | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The condition where sex chromosomes fail to separate during meiosis is known as non-disjunction.$(a)$ The genotype $22$ pairs $+ XXY$ represents K

Vedclass · Accepted Answer

$22$ pairs $+ XXY$ (males)

Vedclass · Answer

(A) The condition where sex chromosomes fail to separate during meiosis is known as non-disjunction.$(a)$ The genotype $22$ pairs $+ XXY$ represents Klinefelter syndrome,which occurs in males.This condition arises due to the fertilization of an abnormal ovum containing $22 + XX$ chromosomes by a normal sperm containing $22 + Y$ chromosomes,or by the fertilization of a normal ovum by an abnormal sperm containing $22 + XY$ chromosomes.Therefore,$22$ pairs $+ XXY$ is a correct genotype for a male phenotype.

In humans,sometimes during gametogenesis,sex chromosomes do not separate,resulting in a chromosome number of $45$,$47$,or $48$. In this condition,which of the following genotype and phenotype combinations is correct?

Similar Questions

$A$ disease caused by an autosomal primary non-disjunction is

In which disorder is the $XXY$ karyotype present?

What is the cause of $Down's$ syndrome?

The genotype of an individual with Down's syndrome is:

Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage?

Vedclass Test Series

Exam Paper Generator

Online Exam Module