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What is menstrual cycle ?...

What is menstrual cycle ?

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The females of placental animals exhibit cyclic changes in the activities of ovaries and accessory ducts as well as hormones during reproductive phase.
In non - primate animals this cycle is called as oestrous cycle.
E.g., human, monkey, ape etc.
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Which ovarian hormone regulates menstrual cycle in women ? A) Testosteron B) Estrogen C) Thyroxin D) None of these

KUMAR PRAKASHAN-REPRODUCTION IN ORGANISMS-SECTION - F MULTIPLE CHOICE QUESTIONS (MCQs)
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  11. The number of chromosomes in the shoot tip cells of a maize plant is 2...

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  14. A few plants exhibit unusual flowering phenomenon, in which of them fl...

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  15. Reproduction without gametic union is called as. (A) Apomixis (B) P...

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  16. Which organ does not show vegetative reproduction ? (A) Flower (B) R...

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  18. Underground stem of ginger & turmeric is called as (A) Tuber (B) Rh...

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  19. Which part would be most suitable for raising virus free plants for mi...

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  21. External fertilization occurs in majority of

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