The process of spermatogenesis in human testis is completed in
74 days
90 days
56 days
32 days
Correct Answer :
A. 74 days
Related Questions
Those person in which testes does not descend into scrotal sac
show normal secondary sexual characters as the Leydig cells are unaffected
are normal in every respect except that they lack ability to procreate
the testes are comparatively smaller in size
all of these
Rupturing of follicles and discharge of ova is known as
copulation
ovulation
oviposition
conjugation
Sertoli cells are located in
caput epididymis
cauda epididymis
seminiferous tubules
germinal epithelium
The testes secrete a group of hormones called
progestogens
androgens
estrogens
tropic hormones
The region where the sperm enters egg is called
equator
rseceptive cone
animal pole
vegetal pole
The gestation period of elephant is about
11 months
10 months
15 months
22 months
In the human menstrual cycle, ovulation occurs around
day 10
day 14
day 8
day 22
The hormone which shows a single mid cycle peak in the human female is
FSH
LH
oestrogen
progesterone
In the male rabbit, the testes are located in
thoracic cavity
pericardial cavity
abdominal cavity
extra-abdominal scrotal cavity
Gestation period in man is a about
10 weeks
28 weeks
32 weeks
35 weeks
The sperm count increases
if a person takes hot bath at 43 - 45°C for 30 minutes per day
if a person wears althletic supporters
during summer months
during winter months
In rabbit, the sperms are stored and nourished in
testes
vasa deferentia
epidydymis
spermatic cord
One of the following accessory glands in the male reproductive system produces secretions that neutralise the acidity in the urethra and in the female genital tract. This is necessary for survival of sperms. This fluid is secreted by
seminal vesicle
prostrate gland
cowper's gland
coagulating gland
The simplest type of placenta found in man is
Haemochorial
Epitheliochorial
Syndesmochorial
Haemo-endothelial
After a sperm has entered an ovum in the process of fertilization, entry of further sperms is prevented by
development of the vitelline membrane
development of the pigment coat
condensation of yolk
formation of fertilization membrane
Which of the following animals are hermaphrodites?
Tapeworm
Leech
Earthworm
All of these
The human sperm was first seen and described by
Hamm and Leeuwenhock
Spallazani
De Graff
VonBaer
The bidder canals help to pass out
ova
sperms
bile
saliva
Secodary sexual character in man is
breast
thyroid
ovary
testis and ovaries
The placental barrier between animal and foetal blood is minimum
goat
cow
pig
man
Cells of Sertoli are found in
testis of rabbit
testis of cockroach
testis of frog
liver of mammals
In which of the animals, the fertilization occurs externally in water ?
Hydra
Earthworm
Frog
Cockroach
Allantois of the mammalian embryo helps in
respiration
excretion
protection
nutrition
The site of fertilization in the female mammalian reproductive system is
vagina
uterus
fallopian tube
ovarian fimbriae
Embryo of a mammal is surrounded by
yolk
amniotfe fluid
both
none of these
A woman's fertility ceases at about 49-55 years. This is known as
gestation
menstruation
puberty
menopause
The female rabbit is
spontaneous ovulator
seasonal ovulator
induced ovulator
natural ovulator
Fertilizers are substances emitted from
mature eggs
immature eggs
sperms
polar body
Clitoris in mammals is
homologous to penis
analogous to penis
functional penis in female
non-functional penis in male
The structure of the male reproductive system that corresponds to oviduct of the female system is
seminiferous tubules
epididymis
vas deferens
urethra