Amnion is an extra-embryonic embrane which develops during the embryonic development of
cockroach
lizard
toad
fish
Correct Answer :
B. lizard
Related Questions
In rabbit, the sperms are stored and nourished in
testes
vasa deferentia
epidydymis
spermatic cord
Which of the following animals are hermaphrodites?
Tapeworm
Leech
Earthworm
All of these
The site of fertilization in the female mammalian reproductive system is
vagina
uterus
fallopian tube
ovarian fimbriae
The capsule enclosing testes of mammal is known as
tunica vasculosa
tunica albuginea
tunica vaginalis
none of these
Sustentacular cells are found in
testis of mammals
testis of Ascaris
ovary of mammals
pancreas of frog
Cells of Sertoli are found in
testis of rabbit
testis of cockroach
testis of frog
liver of mammals
Secodary sexual character in man is
breast
thyroid
ovary
testis and ovaries
In which of the animals, the fertilization occurs externally in water ?
Hydra
Earthworm
Frog
Cockroach
The structure formed after release of ova from Graffian follicles and secretory in nature, is
corpus callosum
corpus luteum
corpus albicans
corpus striatum
The structure of the male reproductive system that corresponds to oviduct of the female system is
seminiferous tubules
epididymis
vas deferens
urethra
The process of spermatogenesis in human testis is completed in
74 days
90 days
56 days
32 days
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
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
The placental barrier between animal and foetal blood is minimum
goat
cow
pig
man
Gubernaculun connects
testis to scrotum
ovary to the body wall in abdomen
the two muscles
the two bones
One of these is polyestrous
Sheep
Bitches
Cows
Goats
Embryo of a mammal is surrounded by
yolk
amniotfe fluid
both
none of these
The female rabbit is
spontaneous ovulator
seasonal ovulator
induced ovulator
natural ovulator
bartholine glands are found and associated with
female reproductive organs of cockroach
male reproductive organs of earthworm
male reproductive organs of rabbit
female reproductive organs of rabbit
Amniotic fluid protects the foetus from
degeneration
encystment
jerks
none of these
Rupturing of follicles and discharge of ova is known as
copulation
ovulation
oviposition
conjugation
Clitoris in mammals is
homologous to penis
analogous to penis
functional penis in female
non-functional penis in male
Gestation period in man is a about
10 weeks
28 weeks
32 weeks
35 weeks
Allantois of the mammalian embryo helps in
respiration
excretion
protection
nutrition
In the male rabbit, the testes are located in
thoracic cavity
pericardial cavity
abdominal cavity
extra-abdominal scrotal cavity
The simplest type of placenta found in man is
Haemochorial
Epitheliochorial
Syndesmochorial
Haemo-endothelial
The hormone which shows a single mid cycle peak in the human female is
FSH
LH
oestrogen
progesterone
In the human menstrual cycle, ovulation occurs around
day 10
day 14
day 8
day 22
The gestation period of elephant is about
11 months
10 months
15 months
22 months
Failure of descending testis into the scrotum is known as
paedogenes
castration
cryptorchidism
impotency