How many sperms are formed from a secondary spermatocyte?
4
8
2
1
Cells become variable in morphology and function in different regions of the embryo. The process is:
Differentiation
Metamorphosis
Organization
Rearrangement
The mammalian corpus luteum produces:
Estrogen
Progesterone
Luteotropic hormone
Luteinizing hormone
What is true about cleavage in fertilized egg of human ?
Meroblastic
Starts when egg reaches uterus
Starts in fallopian tube
It is identical to normal mitosis
Extra-embryonic membranes of the mammalian embryo are derived from:
Inner cell mass
Trophoblast
Formative cells
Follicle cells
At the end of first meiotic division, male germ differentiates into:
Secondary spermatocyte
Primary spermatocyte
Spermatogonium
Spermatid
Acrosome reaction in sperm is triggered by:
Capacitation
Release of lysin
Influx of Na+
Release of fertilizin
Eye lens is formed from:
Ectoderm
Mesoderm
Endoderm
Both (a) and (b)
Egg is liberated from ovary in:
Secondary oocyte stage
Primary oocyte stage
Oogonial stage
Mature ovum stage
Meroblastic cleavage is division:
Horizontal
Partial / parietal
Total
Spiral
