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An another has 1200 pollen grains. How m...

An another has 1200 pollen grains. How many PMCs must have been there to produce them?

A

1200

B

300

C

150

D

2400

Text Solution

Verified by Experts

The correct Answer is:
B
Meiosis of one Pollen Mother Cell (PMC) produces 4 haploid pollen grains. Thus, for producing 1200 pollen grains, 1200/4=300 PMCs are required.
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Knowledge Check

  • To produce 500 pollen grains, how many microspore mother cells are required ?

    A
    500
    B
    125
    C
    250
    D
    1000

  • To produce 102 pollen grains, how many meiotic divisions are required ?

    A
    25
    B
    25.5
    C
    26
    D
    27

  • Pollen grains have spiny exine to aid in

    A
    Entomophily
    B
    Anemophily
    C
    Ornithophily
    D
    Cheiropterophily.

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    A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. Answser the following questions giving reasons : (a) What is the minimum number of pollen grains that must have been involved in the pollination of its pistil ? (b) What would have been the minimum number of ovules present in the ovary ? (c) How many megaspore mother cells were involved ? (d) what is the minimum number of microspore mother cells involved in the above case ? (e) How many male gametes were involved in this case ?

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