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प्रश्न
Draw a labelled diagram of a section through the ovary.
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उत्तर १
उत्तर २
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संबंधित प्रश्न
Give the name and function for ‘A’ and ‘B’ from the diagram given below
What is oogenesis?
Give scientific reason.
There is a menopause when women are 45-50 years old.
Answer the following type of question Assertion (A) and Reason (R).
(A) - In human males, testes are extra-abdominal and lie in scrotal sacs.
(R) - Scrotum acts as a thermoregulator and keeps the temperature lower by 2°C for normal sperm production.
Answer the following type of question Assertion (A) and Reason (R).
(A) - Head of the sperm consists of acrosome and mitochondria.
(R) - Acrosome contains spiral rows of mitochondria.
Expand the acronym.
LH
The part labelled as ______ contains the energy source that facilitates sperm motility.
500 spermatozoa are formed from ____________ secondary spermatocytes.
Identify the longest period of menstrual cycle.
Which is the correct order of steps occurring during spermatogenesis?
How many sperms are formed from a secondary spermatocyte?
Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
It The cell division in secondary oocyte is suspended at ______.
Gray crescent is the area ______.
In spermatogenesis, reduction division of chromosome occurs during conversion of ______.
The principal tail piece of human sperm shows the microtubular arrangement of ______.
Acrosome is a type of ______.
What does the figure represent?
Sperms can be stored for several years in liquid nitrogen with a temperature of ______.
3-celled male gamete develops in:
The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:
Capacitation refers to changes in the ______.
The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.
How many spermatozoa are formed from one secondary spermatocyte?
What is spermatogenesis?
Complete the analogy with respect to the structure of sperm.
Nebenkern : ‘X’ : : Acrosome is formed from : ‘Y’
Which of the following phases are shared by both spermatogenesis and oogenesis?
