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Pteridophytes

If the chromo...

Question

If the chromosome number in the foot of fern embryo is 20, the number in its spore is

A

40

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B

20

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C

10

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D

5

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Solution

The correct option is C 10
An embryo is developed from a diploid zygote. The spore is formed from a spore mother cell on reduction division and hence, spore is haploid and the embryo is diploid. So, the foot of embryo have chromosome number 20 and spore has 10.

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