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प्रश्न
Spermiation is the process of the release of sperm from ______.
विकल्प
Seminiferous tubules
Vas deferens
Epididymis
Prostate gland
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उत्तर
Spermiation is the process of the release of sperm from seminiferous tubules.
Explanation:
Spermiation is the process of releasing mature sperm from the sertoli cells into the lumen of the seminiferous tubules. This means sperm are released from the seminiferous tubules during spermiation.
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संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans?
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 spermiogenesis.
Fill in the blank.
---------- type of reproduction occurs without fusion of gametes.
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples.
If one pollen grain produces two male gametes, how many pollen grains are needed to fertilize 10 ovules?
Mention the differences between spermiogenesis and spermatogenesis.
Draw a labeled sketch of a spermatozoan.
Give a schematic representation of spermatogenesis and oogenesis in humans.
Complete the analogy.
1 primary spermatocyte : 4 spermatozoa :: 1 primary oocyte : ____________.
Identify the proper order of spermatogenesis and choose the correct option.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
The immature male germ cells differentiates into ______ at the end of meiosis I.
Four primary spermatocytes give rise to ______.
There is no cell division involved in ______.
Cavity of graafian follicle is ______.
During embryonic development, the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called ______.
Besides activating the egg another role of a sperm is to carry ______ to egg.
Head of epididymis is called as ______.
Mark the odd one.
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?
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?
What is the difference between a primary oocyte and a secondary oocyte?
Which type of cell division forms spermatids from the secondary spermatocytes?
During spermatogenesis meiosis occurs in ______.
