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प्रश्न
Give scientific reasons: Mature erythrocytes in humans lack nucleus and mitochondria
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
Describe the function of placenta.
State the main function of the Sperm duct.
What do the ovaries in a woman produce?
One of the following is not a part of the human male reproductive system. This is
(a) testis
(b) oviduct
(c) seminal vesicle
(d) prostrate gland
Fertilisation results immediately in the formation of :
(a) a zygote
(b) an embryo
(c) a placenta
(d) a foetus
Give the function of the following:
Uterus
What do you understand by an inguinal hernia?
Differentiate
Sexual Reproduction and Asexual Reproduction.
Choose the Odd One Out:
The membranous cover of the ovum at ovulation is ______.
