How many meiotic divisions are required to pr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In angiosperms,one meiotic division produces $4$ microspores (pollen grains) and $1$ functional megaspore (embryo sac).Each seed is formed by the

Vedclass · Accepted Answer

$250$ and $500$

Vedclass · Answer

(B) In angiosperms,one meiotic division produces $4$ microspores (pollen grains) and $1$ functional megaspore (embryo sac).Each seed is formed by the fusion of one male gamete and one female gamete.To produce $n$ seeds,$n$ meiotic divisions are required for the male gametes (pollen grains) and $n$ meiotic divisions are required for the female gametes (embryo sacs).Therefore,the total number of meiotic divisions required is $n + n/4$ (since $4$ pollen grains are produced per meiosis,but only $1$ embryo sac is produced per meiosis).However,in standard textbook problems of this type,the calculation is often simplified as $n + n/4$ for the total divisions.For $200$ seeds: $200$ (for megaspores) + $200/4$ (for microspores) = $200 + 50 = 250$ divisions.For $400$ seeds: $400$ (for megaspores) + $400/4$ (for microspores) = $400 + 100 = 500$ divisions.Thus,the correct answer is $250$ and $500$.

How many meiotic divisions are required to produce $200$ and $400$ seeds in pea plants,respectively?

Similar Questions

How many meiotic divisions are required to produce $100$ seeds/grains of wheat?

Which of the following are devices for self-pollination?

Even in the absence of pollinators,seed-setting is assured in $-$

Which of the following is incorrect with respect to angiosperms?

$A$: The higher organisms must evolve a special mechanism for gamete transfer.
$R$: Male and female gametes are formed in different individuals.

Vedclass Test Series

Exam Paper Generator

Online Exam Module