CBSE
Multiple Choice QuestionsThe production and maturation of sperm in testes is known as :
oogenesis
sporogenesis
gametogenesis
spermatogenesis
Which one of the following statement with regard to the embryonic development in humans is correct ?
Cleavage results in a hollow balls of cells called morula
Cleavage in mammalian ova is unequal holoblastic and horizontal
Rearrangement of blastomeres, a central cavity is formed inside the morula
Cleavage bring about considerable increase in the mass of protoplasm
Human sperm was discovered by
Leeuwenhoek
Aristotle
Graaf
Pander
Secretion of androgens by testes is regulated by:
LTH
FSH
ICSH
Oxytocin
During a woman's life time, she produces about:
40-50 eggs
300-350 eggs
400-500 eggs
750-850 eggs
Hormone responsible for the secretion of milk after parturition is
ICSH
Prolactin
ACTH
LH
The phase of menstrual cycle in humans that lasts for 7-8 days, is :
menstruation
luteal phase
ovulatory phase
follicular phase
Endometrium is the lining of
bladder
vagina
uterus
oviduct
Embryo sac is
microgametophyte
microsporangium
megagametophyte
megasporangium
Which one of the following statements with regard to embryonic development in humans is correct?
Cleavage divisions bring about considerable increase in the mass of protoplasm
In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second
With more cleavage divisions, the resultant blastomeres become larger and large
Cleavage division results in a hollow ball of cells called morula
