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  • Assertion: Meiosis happens in both plants and animals, and while the specifics may vary across species and even between sexes within the same species (for instance, in hu

Assertion: Meiosis happens in both plants and animals, and while the specifics may vary across species and even between sexes within the same species (for instance, in humans, the timing of meiosis varies between males and females), the process is generally very conserved.

Reason: When DNA crosses over, maternal and paternal genes are genetically exchanged.

Option: 1

A


Option: 2

B


Option: 3

C


Option: 4

D


Answers (1)

best_answer

Both Assertion & Reason are true and the reason is the correct explanation of the assertion. 

Both intrinsic and extrinsic cues are necessary for the start of meiosis. One round of DNA replication is followed by two rounds of cell division during meiosis, which produces haploid germ cells. Maternal and paternal genes are genetically exchanged as a result of DNA crossing over. Meiosis happens in both plants and animals, and while the specifics may vary across species and even between sexes within the same species (for instance, in humans, the timing of meiosis varies between males and females), the process is generally very conserved.

Option 1 is the correct answer. 

Posted by

Kuldeep Maurya

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