REPRODUCTION
REPRODUCTION IN ORGANISMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively,
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12, 24, 12
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24, 12, 12
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12, 24, 24
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24, 12, 24
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Explanation:
Detailed explanation-1: -So, the correct answer is ‘12, 24, 24’.
Detailed explanation-2: -Asian cultivated rice (Oryza sativa L.) is a diploid species with two sets of 12 chromosomes (2n = 24).
Detailed explanation-3: -A female plant has 12 chromosomes in its egg cell and crossed with plant with 24 chromosomes in its microspore mother cells. Number of chromosomes in its zygote will be48. 36.
Detailed explanation-4: -The male gametes of rice plant have 12 chromosomes in their nucleus.
Detailed explanation-5: -So as per the question, male gametes have 12 number of chromosomes, hence n= 12 here. Then the female will also be “n”.
There is 1 question to complete.