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प्रश्न
Answer the following question based on the human male reproductive system:
By which type of cell division, sperms are formed?
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उत्तर
- Sperms are formed by the type of cell division known as meiosis.
- Meiosis reduces the chromosome number by half, producing haploid sperm cells essential for fertilisation.
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संबंधित प्रश्न
Pituitary dwarfism is treated with gene therapy by____
(A) Human insulin
(B) Tissue growth factor - Beta
(C) Tissue plasmogen activator
(D) Human growth hormone producer gene
Draw a labelled diagram of L.S. of human testis.
Put a tick mark (✓) against the correct alternative in the following statement:
Identify the stage which is formed after the fertilisation of the egg by the sperm?
Write in sequence, the regions which a mature sperm travels from the seminiferous tubules up to the urethral opening in the human male.
Define the following term:
Hernia
Given below is the schematic diagram of the sectional view of the human male reproductive system.
State the functions of the parts numbered 1, 2, 3, 5, 8 and 11.
Explain the term Androgens.
Name the Following
The tubular knot fitting like a cap on the upper surface of the testes.
The vas deferens opens into urethra as ______.
Spermatids are transformed into sperm by a process called ______.
Ejaculation of human male contains about 200 - 300 million sperms, of which for normal fertility ______% sperms must have normal shape and size and at least ______% must show energetic motility.
The correct sequence of organs in the male reproductive system for transport of sperms is
What are the components of semen?
Given below is a certain situation. Analyze and describe its possible impact on a person:
The Vas deferens of a man is plugged.
Give reason: Testes are located outside the body cavity in scrotal sacs.
In humans, sperm production occurs in the organ ______.
List two roles of Seminal vesicles and prostate gland in the human reproductive system.
What is the significance of Testes being placed in Scrotal sacs?
The packing tissues between the coils of the seminiferous tubules are called as ______.
The canal through which each testis descends into the scrotum just before the birth of a male baby is ______.
