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प्रश्न
Give scientific reasons: Mature erythrocytes in humans lack nucleus and mitochondria
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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
Explain how the embryo gets nourishment inside the mother’s body.
What are sexually transmitted diseases?
Name the liquid that contains sperms.
Write the names of female sex hormones.
How long does a human baby take to develop before birth?
What is reproduction? List its two types.
Choose the Odd One Out:
Multiple Choice Question:
What will happen if the temperature of the scrotal sacs temporarily goes to about 2°C lower than body temperature?
How does human sperm locomote?
Which one of the following statements about human sperm is correct?
