Sex chromosome in male of silkworm is
X
Y
XX
no X no Y
When an animal has both sexes (male and female), it is called
intersex
superfemale
gynandromorph
supermale
The Barr body is observed in
basophils of male
neutrophils of female
eosinophils
neutrophils of male
If the ratio between X- chromosome and complete set of autosome is 0.5. Then the individual will be
female
male
Sex chromosomes of a female bird are represented
ZW
XY
XO
Genic balance theory of sex determination stated by C.B. Bridges is related to
Drosophila melanogaster
Rumex acetosella
Snapdragon
None of the above
The recessive genes located on X-chromosomes in human are always
lethal
sub-lethal
expressed in males
expressed in females
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
In Drosophila, the sex is determined by
X and Y- chromosomes
the ratio of number of X-chromosome to the set of autosomes
whether the egg is fertilized or develops parthenogenetically
the ratio of pair of X-chromosome to the pair of autosomes
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%
