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The cells of the leaf tip of a plant contain 20 chromosomes. Each cell of the pollen tetrad of such a plant would contain:

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Question

The cells of the leaf tip of a plant contain 20 chromosomes. Each cell of the pollen tetrad of such a plant would contain:

Options

  • 4 chromosomes

  • 10 chromosomes

  • 16 chromosomes

  • 20 chromosomes

MCQ
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Solution

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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Chapter 2: Structure of Chromosome - Intex Quesions [Page 26]

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Lakhmir Singh Biology [English] Class 10 ICSE
Chapter 2 Structure of Chromosome
Intex Quesions | Q 1. | Page 26
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