Advertisements
Advertisements
प्रश्न
Mention the differences between spermiogenesis and spermatogenesis.
उत्तर
| Spermiogenesis | Spermatogenesis |
| Transformation of spermatids into mature sperm. | Spermatogenesis is the sequence of events in the seminiferous tubules of testes that produces male gametes, the sperms. |
संबंधित प्रश्न
Women are often blamed for producing female children. Consequently, they are ill-treated and ostracised. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions
(a) Acrosome
(b) Nucleus
(c) Middle piece
Define gametogenesis.
Expand the acronym.
hCG
During spermatogenesis, spermatogonium grows in size to become ______.
Which is the correct order of steps occurring during spermatogenesis?
Identify the correct stages (P - S) in the given diagram of spermatogenesis.
Four primary spermatocytes give rise to ______.
The human male gamete is usually about ______ in length.
In human beings, the largest cell formed during Oogenesis is ______
Middle piece of mammalian sperm possesses ______.
Sertoli cells are found in ______.
Connective tissue around seminiferous tubules possess endocrine cells called ______.
Corona radia is made up of ______.
Which of the following contains the actual genetic part of a sperm?
At what stage of life is oogenesis initiated in a human female?
In oogenesis haploid egg is fertilised by sperm at which stage?
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?
Aquatic animals in which fertilisation occurs in water are said to be
The diagram given below shows the various steps in spermatogenesis.
- Name the parts labelled '1', '2' and '3'.
- Name the process by which part '3' changes to part '4'.
