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प्रश्न
Draw a labeled sketch of a spermatozoan.
उत्तर
spermatozoan
संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
Give scientific reason.
There is a menopause when women are 45-50 years old.
In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?
The male sex hormone testosterone is secreted from ____________.
The glandular accessory organ which produces the largest proportion of semen is ____________.
At what stage of development are the gametes formed in newborn male and female?
Describe the structure of the human ovum with a neat labelled diagram.
The secondary oocyte enter into the fallopian tube through the ______.
Identify the labels (i-iv) in the given diagram of the ovum.
Formation of ____________ is an indication of the termination of oogenesis.
500 spermatozoa are formed from ____________ secondary spermatocytes.
Identify the longest period of menstrual cycle.
Identify the enzyme released by the sperm which has lytic activity.
Draw a labelled diagram of a Graafian Follicle.
In human beings, the largest cell formed during Oogenesis is ______
The nutritive cells found in seminiferous tubules are ______.
In the process of fertilization, this is true:
The region of the root tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
