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प्रश्न
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
विकल्प
Spermatogonia have 46 chromosomes and always undergo meiotic cell division
Primary spermatocytes divide by mitotic cell division
Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
Spermatozoa are transformed into spermatids
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उत्तर
Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
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संबंधित प्रश्न
Briefly describe the process of spermatogenesis.
Define spermiogenesis.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Define gametogenesis.
Expand the acronym.
LH
Four primary spermatocytes give rise to ______.
Find out the CORRECT sequence of spermatogenesis.
It The cell division in secondary oocyte is suspended at ______.
Gray crescent is the area ______.
Preparation of sperm before penetration of ovum is ______.
How many sperms are formed from 4 primary spermatocytes?
Select the correct sequence of stages of spermatogenesis in a human male ______.
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?
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:
The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:
During reproduction, the chromosome number (2n) reduces to half (n) in the gametes and again the original number (2n) is restored in the offspring. What are the processes through which these events take place?
During spermatogenesis meiosis occurs in ______.
Answer the following:
How many primary spermatocytes and oocytes are required for the formation of 100 spermatozoa and ova?
The process of gametogenesis is initiated by ______ and ______ hormones respectively.
