Solve Ques 21 Q 21 Explain how the sex of child is determined at the of conception in human - Science - Heredity and Evolution

Question

Solve Ques 21
Q 21 Explain how the sex of child is determined at the of
conception in human being? How variations are caused during sexual
reproduction

Anjali Pandey · Accepted Answer

Dear Student ,
Please find the answer of your asked query -

Human beings exhibit male heterogamy In humans, males (XY) produce
two different types of gametes, X and Y The human female (XX)
produces only one type of gametes containing X chromosomes The sex
of the baby is determined by the type of male gamete that fuses
with the female gamete If the fertilizing sperm contains X
chromosome, then the baby produced will be a girl and if the
fertilizing sperm contains Y chromosome, then the baby produced
will be a boy Hence, it is a matter of chance that determines the
sex of a baby There is an equal probability of the fertilizing
sperm being an X or Y chromosome Thus, it is the genetic make up of
the sperm that determines the sex of the baby
<img align="bottom" border="0" height="324" name="graphics8"
src="https://img-nm%20mnimgs%20com/img/study_content/curr/1/12/18/280/6023/NS_7-11-08_Reena_12_Bio_5_16_BHU_SS_html_m7fce43a9%20jpg"
width="278" id="graphics8">

Variation occurs due to fusion of two sex gametes (male and female)
as they both transfer their character to the progeny

Regards!

Solve Ques 21 Q.21. Explain how the sex of child is determined at the of conception in human being? How variations are caused during sexual reproduction.

Solve Ques 21
Q.21. Explain how the sex of child is determined at the of conception in human being? How variations are caused during sexual reproduction.