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प्रश्न
Draw a labelled diagram of sperm.
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उत्तर १
उत्तर २
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संबंधित प्रश्न
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
What is oogenesis?
______ type of reproduction occurs without fusion of gametes.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
At what stage of development are the gametes formed in newborn male and female?
During spermatogenesis, spermatogonium grows in size to become ______.
The secondary oocyte enter into the fallopian tube through the ______.
Identify the proper order of spermatogenesis and choose the correct option.
Which is the correct order of steps occurring during spermatogenesis?
______ undergoes 2nd meiotic division during spermatogenesis.
The human male gamete is usually about ______ in length.
Middle piece of mammalian sperm possesses ______.
Acrosome reaction in sperm is triggered by ______.
After ovulation, Graafian follicle regresses into ______.
The immature male germ cell undergo division to produce sperms by the process of spermatogenesis.
Choose the correct one with reference to the above.
Which among the following has 23 chromosomes?
Identify the wrong statement from the following.
At what stage of life is oogenesis initiated in a human female?
Layers of an ovum from outside to inside is ______.
After the release of the secondary oocyte, the Graafian follicle develops into ______.
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Which cell division is involved in the formation of secondary oocytes?
Follicular atresia is:
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
Process of maturation and development of sperms ______.
What is spermatogenesis?
The process of gametogenesis is initiated by ______ and ______ hormones respectively.
Select a correct pair of cells with identical set of chromosomes.
