Advertisements
Advertisements
प्रश्न
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
Advertisements
उत्तर
|
Spermatogenesis
|
Oogenesis
|
|
It is the process by which sperms are formed from the sperm mother cell in males
|
It is the process by which ovum is formed from the oogonia in females
|
|
After the second meiotic divisions in a single spermatogonium, 4 spermatids are obtained, which undergo maturation to form 4 sperm cells, or spermatozoa
|
After the second meiotic divisions in the single oogonium, only one ovum and three polar bodies are obtained.
|
|
Spermatogenesis occurs in males from puberty almost until death.
|
In females, oogenesis starts before birth and occurs until menopause.
|
APPEARS IN
संबंधित प्रश्न
The following is the illustration of the sequence of ovarian events (a − i) in a human female
(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.
(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.
(iii) Explain the changes that occur in the uterus simultaneously in anticipation.
(iv) Write the difference between ‘c’ and ‘h’.
(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.
The fusion of the male and the female gametes is called ______.
Name the functions - Acrosome of sperm.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Mammalian egg is ____________.
Describe the structure of the human ovum with a neat labelled diagram.
Identify the diploid cell.
There is no cell division involved in ______.
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is ______.
Which of the following groups of cells in the male gonad, represent haploid cells?
