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प्रश्न
In humans, there are ____________ pairs of chromosomes.
पर्याय
22
23
44
46
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उत्तर
In humans, there are 23 pairs of chromosomes.
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संबंधित प्रश्न
Draw a labelled diagram of L.S. of human testis.
Fill in the blank:
Male gemetes are produced inside _______.
Given on the right is a diagram which represents the reproductive organs of a man:
(i) Write the names of the parts numbered 1 to 16.
(ii) Give two functions of the part 6.
(iii) Name three components of the fluid which may be found in the tube labeled 2.
(iv) What is the main function of the part labelled 3?
Explain the Term Penis.
Explain the term Gametogenesis.
Name the Following
The accessory gland in human males whose secretion activates the sperms.
Write the functional activity of the following structure:
Cowper’s gland
Draw a neat and labelled diagram.
Human male reproductive organs
The increased level of estrogen and progesterone is responsible for menstruation.
Identify the condition in wtrich the testis fails to descend from abdomen into scrotum, leading to sterility.
Identify the INCORRECTLY labelled structure in the given diagram of the male reproductive system.
Which is the duct that carries sperms from testes and opens into the epididymis?
In the male reproductive system, the vasa deferens joins the ____________.
The ________ secrete testosterone after puberty.
ln the reproductive system of a male human being, the ejaculatory ducts open into ________.
Which of the following produces sperms in spermatogenesis?
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is ______.
Seminal plasma in human males is rich in ______.
Mature sperms in humans are stored in ______.
Name the following:
Three accessory glands of human male reproductive system.
