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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Define spermiogenesis.

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प्रश्न

Define spermiogenesis.

Define the term spermiogenesis.

परिभाषा
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उत्तर १

Spermiogenesis is the process of transforming spermatids into mature, flagellated spermatozoa (sperms).

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उत्तर २

The process of transformation of a circular spermatid to a spermatozoon is called spermiogenesis.

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अध्याय 2: Human Reproduction - EXERCISES [पृष्ठ ४०]

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एनसीईआरटी Biology [English] Class 12
अध्याय 2 Human Reproduction
EXERCISES | Q 8. a. | पृष्ठ ४०
नूतन Biology [English] Class 12 ISC
अध्याय 2 Human Reproduction
TEST YOUR PROGRESS | Q 13. | पृष्ठ १११
नूतन Biology [English] Class 12 ISC
अध्याय 2 Human Reproduction
NCERT EXERCISES | Q 8. (i) | पृष्ठ ११६

संबंधित प्रश्न

Ovulation is induced by a hormone called ______.


Describe the process of budding in hydra.


Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.


Explain the structure of secondary oocyte.


Give scientific reason.

There is a menopause when women are 45-50 years old.


If newborns are produced at the age of menopause, they may be with some abnormalities. Why?


In angiosperms, the pollen germinates to produce a pollen tube that carries two gametes. What is the purpose of carrying two gametes when a single gamete can fertilize the egg?


Mammalian egg is ____________.


Expand the acronym.

hCG


Which of the following are known as the nourishing cells present in the seminiferous tubules?


Which of the following correctly describes the secondary oocyte?


In human beings, the largest cell formed during Oogenesis is ______


How many sperms are formed from a secondary spermatocyte?


Which among the following has 23 chromosomes?


The cell which undergoes meiosis I during spermatogenesis is the ______.


The head of the epididymis at the head of the testis is called ______.


In spermatogenesis, reduction division of chromosome occurs during conversion of ______.


Head of epididymis is called as ______.


Mark the odd one.


Penetration of the sperm in the ovum is followed by ______


The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:


Which of the following cells during gametogenesis is normally diploid?


The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.


How many spermatozoa are formed from one secondary spermatocyte?


Name the germinal layers from which the following organs develop: Tongue, heart, sweat glands, vagina, mammary glands, kidney.


Distinguish between human sperm and ovum.


What is spermatogenesis?


What are the two main types of gametogenesis based on the organ in which they occur?


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