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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
Women are often blamed for producing female children. Consequently, they are ill-treated and ostracized. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?
Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process.
The process of release of the ovum from a mature follicle is called ______.
Name the hormones involved in regulation of spermatogenesis.
Name the functions - Acrosome of sperm.
Explain two main process in sexual reproduction.
At what stage of development are the gametes formed in newborn male and female?
Expand the acronym.
LH
Which of the following are known as the nourishing cells present in the seminiferous tubules?
Select the correct sequence of oogenesis.
Draw a labelled diagram of a Graafian Follicle.
Select the pair of cells which does not divide further by mitosis.
Extrusion of second polar body from egg nucleus occurs ______.
Spermiation is the process of the release of sperm from ______.
Which of the following groups of cells in the male gonad, represent haploid cells?
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?
Observe the given figure and answer the questions that follow.
- Label A and B.
- Identify the process.
- What happens during this process and what is formed?
Growth hormone of pituitary is more effective in ______.
Given below are two statements.
- Statement I: The spermatids are non-motile and non-functional which get transformed into functional spermatozoa by the process of spermiogenesis.
- Statement II: During the process of this change, the spermatids remain held to each other and to Leydig's cells by cytoplasmic bridges.
In light of the above statements, select the correct answer from the option given below.
