Which part of the sperm plays an important role in penetrating the egg membrane?
tail
acrosome
allosome
autosome
Cumulus covers
ovary
ovum
embryo
all of these
Which of the following initiates the preparation of uterus for the implantation of ovum?
LH
FSH
estrogen
progesterone
In human females, the eggs are
alecithal
macrolecithal
mesolecithal
microlecithal
Sertoli cells are involved in
respiration of snail
nutrition of sperms
excretion of cockroach
movement of sperm
Fertilization of ovum in mammals, takes place in
uterus
cervix
fallopian tube
Immediately after ovulation, the mammalian egg is covered by a membrane known as
chorion
zona pellucida
corona radiata
vitelline membrane
Sperms are stored in earthworm after fertilization in
testis
kidney
spermatheca
seminal vesicle
Corpus luteum is developed from
oocyte
nephrostome
Graafian follicle
