Principle of Inheritance and VariationHard

Question

In Down′s syndrome of a male child, the sex complement is

Options

A.XO
B.XY
C.XX
D.XXY

Solution

The cause of Down′s syndrome is non-disijunction of 21st chromosome during oogenesis. This chromosomal abnormality is related with autosome so the sex complement of a male child in this syndrome will be XY.

Create a free account to view solution

View Solution Free
Topic: Principle of Inheritance and Variation·Practice all Principle of Inheritance and Variation questions

More Principle of Inheritance and Variation Questions

Gene which suppresses other gene′s activity but does not lie on the same locus is called...H J Muller was awarded Nobel Prize for his...First geneticist / father of genetics was...Blood grouping in humans is controlled by...Triticale has been evolved by intergeneric hybridization between...