Which of the following conditions of gametes | vedclass

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

Question

(B) In humans,the sex determination mechanism is of the $XX-XY$ type.- The female is homogametic,producing ova with $22 + X$ chromosomes.- The male is

Vedclass · Accepted Answer

Two $X$ chromosomes

Vedclass · Answer

(B) In humans,the sex determination mechanism is of the $XX-XY$ type.- The female is homogametic,producing ova with $22 + X$ chromosomes.- The male is heterogametic,producing sperms with either $22 + X$ or $22 + Y$ chromosomes.- When a sperm carrying an $X$ chromosome fertilizes an ovum $(X)$,the resulting zygote has $XX$ chromosomes,which develops into a female child.- When a sperm carrying a $Y$ chromosome fertilizes an ovum $(X)$,the resulting zygote has $XY$ chromosomes,which develops into a male child.- Therefore,the combination of two $X$ chromosomes (one from the mother and one from the father) results in a female child.

Which of the following conditions of gametes results in the birth of a normal human female child?

Similar Questions

Which chromosomes determine the male sex in the $Melandrium$ plant?

In humans,the chromosomal composition of a female-destined zygote is:

Which of the following exhibits female heterogamety?

An autosome is:

$X$-chromosome or $X$-body was first observed by.............

Vedclass Test Series

Exam Paper Generator

Online Exam Module