Formation of Primary Follicle
Trending Questions
The membranous cover of the ovum at ovulation is
corona radiata
zona radiata
zona pellucida
chorion
Choose the odd one in each of the following :
(a) Sperm; implantation; fertilisation; ovum; afterbirth.
(b) Relaxin; cervix dilates; amniotic sac ruptures; child birth; follicle.
- Granular layer.
- Malpighian layer.
- Cornified layer.
- Germinative layer.
- Spermatogenesis
- Sperm duct
- Alkaline secretions
- Testosterone
- Zona pellucida
- Granulosa
- Theca interna
- Stroma
- True
- False
Sperm is prodused in
(i) seminiferous tubule (ii) vasa deferens (iii) urethra (iv) both (i) &(ii)
The germ pores in the pollen grain are the regions
through which sperms are released into the female gametophyte
which are made up of lignin and suberin
which lack sporopollenin
that can withstand high temperature and strong acids and alkalies
- Testes
- Penis
- Epididymis
- Urethra
In human, during fertilisation, a sperm firstly comes in contact with which layer of the ovum.
Zona pellucida
Vitelline membrane
Jelly coat
Corona radiata
Entry by other sperms into the oocyte is stopped after the first one penetrates the
Granulosa cells
Corona radiata
Zona pellucida
Cytoplasm
what is the difference between mylien sheath and neurolemma?
Statement 1 : Aquatic animals produce large number of eggs and sperms necessary to ensure external fertilization.
Statement 2 : The eggs swim in water with the help of cilia, and fertilize the sperms.
- Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
- Both statements1 and 2 are true but statement 2 is not the correct explanation of statement 1.
- Statement 1 is true but statement 2 is false.
- Both statements 1 and 2 are false.
The main function of the multiple cortical granules released from the oocyte into the perivitelline space is -
Aid in the entry of 2 sperm into the ovum to form fraternal twins
Prevent binding of additional sperm
Activate special receptors to which sperm attaches
None of the above
- Polar bodies
- Middle piece of sperm
- Mature eggs
- Acrosome