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प्रश्न
The cells of the leaf tip of a plant contain 20 chromosomes. Each cell of the pollen tetrad of such a plant would contain:
विकल्प
4 chromosomes
10 chromosomes
16 chromosomes
20 chromosomes
MCQ
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उत्तर
10 chromosomes
Explanation:
A leaf tip cell is a somatic (body) cell, which is diploid (2n = 20). Cells of a pollen tetrad are haploid gametes (n) formed by meiosis. Therefore, they contain exactly half the number of chromosomes: 20 ÷ 2 = 10.
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