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Q.

If each cell of the spore tetrad has 7 chromosomes, how many chromosomes are found in a dividing root tip cell in anaphase?

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a

7

b

28

c

14

d

21

answer is D.

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Detailed Solution

Micro spore 7 chromosomes megaspore contain 7 chromosomes so the resulting zygote contain 14 chromosomes in ‘s’ phase DNA replication occur so finally anaphase contain  28 chromosomes.

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