When released from ovary, human egg contains
one Y-chromosome
one X-chromosome
two X-chromosome
XY-chromosome
Human female posses 44 + XX chromosomes. The secondary oocyte shall have
44 + XX
22
44
22 + X
Chromosomal theory of lnheritance was proposed by
Sutton and Boveri
Bridges
Hugo de Vries
Gregor Mendel
Sex chromosome in male of silkworm is
X
Y
XX
no X no Y
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
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
Which of the following symbols are used for representing chromosome of birds
ZZ-ZW
XX-XY
XO-XX
ZZ-WW
A man can inherit his X-chromosome from his
paternal grandfather
maternal grandfather
father
maternal grandmother and maternal grandfather
In Gynandromorphs _________
some cells of body contain XX and some cells with genotype XY
all cells have XX genotype
all cells have XY genotype
all cells with genotype XXY
