Sertoli's cells are regulated by the pituitary hormone known as
FSH
GH
Prolactin
LH
The lytic enzyme present in semen is
ligase
oestrogenase
androgenase
hyaluronidase
Cessation of menstrual cycle in a woman is called
lactation
menopause
ovulation
parturition
Layers of an ovum from outside to inside is
corona radiata, zona pellucida and vitelline membrane
zona pellucida, corona radiata and vitelline membrane
vitelline membrane, zona pellucida and corona radiata
zona pellucida, vitelline membrane and corona radiata
Relaxin is released from
testis
ovary
adrenals
pituitary
The preparation of sperm, before penetration into ovum, is called
coition
capacitation
insemination
spermiation
Withdrawal of which of the following hormones is the immediate cause of menstruation?
Oestrogen
FSH-RH
Progesterone
Which of the following is viviparous?
Running birds
Whales
Bats
Both (b) and (c)
Which one of the following statements about human sperm is correct?
Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilization
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization
Acrosome serves as a sensory structure leading the sperm towards the ovum
Acrosome serves no particular function
Middle piece of sperm contains
mitochondria, Golgi bodies, centriole
axial filament, centriole, Golgi bodies
mitochondria, centriole, axial filament
Golgi bodies, axial filament, centriole
