In XY-XX type of sex determination pattern, what will be the sex of the offspring if egg is fertilized by sperm having X chromosome?
a) male
b) female
c) both a and b
d) none of them
Explanation: X from sperm and X from egg unite and form XX which will be female
In XY-XX type of sex determination pattern, what will be the sex of the offspring if egg is fertilized by sperm having Y chromosome?
a) male
b) female
c) both a and b
d) none of them
Explanation: Y chromosome from sperm and X from egg unite and form XY which will be male
What is the ratio between male and female offspring (son or daughter) in XY-XX type sex determination pattern?
a) 1:2
b) 1:1
c) 2:1
d) 1:3
Which of the following
sex determination pattern is found in birds?
a) XO-XX Type
b) XY-XX Type
c) XX-XY Type
d) none of these
Explanation: this type is called WZ-ZZ Type
Which of the following sex determination pattern is found in moths and butterfly?
a) XO-XX Type
b) XY-XX Type
c) XX-XY Type
d) none of these
Who discovered XX-XY type sex determination pattern in moths?
a) Carl Correns
b) J. Seiler
c) T.H. Morgan
d) Sturtevant
