Barr body in mammals represents
the Y-chromosome in somatic cells of male
all the heterochromatin in male and female cells
one of the two X-chromosomes in somatic cells of females
all the heterochromatin in female cells
Number of Barr bodies is XXXXY
1
2
3
4
When an animal has both sexes (male and female), it is called
intersex
superfemale
gynandromorph
supermale
Sex chromosomes of a female bird are represented
XX
ZW
XY
XO
Identify the wrong statement.
In domesticated fowls, the sex of the progeny depends on the type of sperm rather than the egg
The human males have one of their sex chromosomes much shorter than other
Usually, female birds produce two types of gametes based on sex chromosome
In male grasshoppers, 50% of the sperms have no sex chromosome
If the ratio between X- chromosome and complete set of autosome is 0.5. Then the individual will be
female
male
Sex chromosome in male of silkworm is
X
Y
no X no Y
A couple has 6 children 5 are girls and 1 is boy. the percentage of having a girl on next time is
10%
20%
50%
100%
Sex determination in an organism is given by X/A=1.5, then organism will be
super female
Which of the following symbols are used for representing chromosome of birds
ZZ-ZW
XX-XY
XO-XX
ZZ-WW
