You are in browse mode. You must login to use MEMORY

level: AIIMS plus disha questions

Questions and Answers List

Question	Answer
immediately after ovulation, mammalian egg is covered by a membrane called as	vitelline membrane
the extra embryonic membranes of mammalian embryo are derived from	trophoblast
acrosome of sperms is formed by	golgi bodies
cumulus covers	ovum
both corpus luteum and macula lutea are	characterised by a yellow colour
the early human embryo distinctly possesses	external ear (pinna)
the phase of mentrual cycle in humans that lasts for 7-8 days is	ovulatory phase
cleavage divisions bring about	considerable increase in the mass of protoplasm
women who consumed the drug thaliomide for relief from vomiting during early months of pregnancy gave birth to children with	under developed limbs
endometrium regenetrates in	5-10 days
used by sperm to penetrate egg membrane	hyalurodinase
in humans, what is the ratio of the number of gametes produced form one male primary sex cell to the number of gametes produced from one female primary sex cell	4:1
meroblastic cleavage refers to which type of division of egg	incomplete
which of the following organ is differentiated first during development	heart
the correct sequence of spermatogenetic stages	spermatogonia-spermatocyte-spermatid-sperms
morula involves cleavage of cells till 32 cell stage is formed. it is still surrounded by	zona pellucida
ageing is a result of switching on and off of certain genes. B and T-lymphocytes undergo programmed cell death called apoptosis	programmed senescence theory of ageing