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प्रश्न
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
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उत्तर
In case of fertilisation of the ovum by a sperm, the corpus luteum persists and continues to secrete progesterone in the body thus maintaining its high levels. The presence of progesterone prevents the maturation of another ovum, thus temporally stopping the menstrual cycle.
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संबंधित प्रश्न
Differentiate between Sperm duct and fallopian rube (function)
Give scientific reasons: Mature erythrocytes in humans lack nucleus and mitochondria
Write the names of female sex hormones.
Write two examples of sexually transmitted diseases caused by virus.
Draw a sectional view of human female reproductive system and label the following parts :
(i) Where the development of egg occurs.
(ii) Where fertilization takes place.
State whether the following statement is true or false:
Oviducts and fallopian tubes are one and the same thing.
Define the following:
Asexual reproduction
Identify the given diagram.
Name the parts 1 to 5. 
Choose the Odd One Out:
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Write the difference between C and H.
