Question

25.
During embryonic development, after third
cleavage the number of blastomeres formed
will be
b. 10
d. 8
a. 16
c. 32
Ans.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

During embryonic development, after third cleavage the number of blastomeres formed will be 16.

Explanation:

• Since the generation of a multicellular creature is the aim of development, several cells must be formed from the single-celled zygote.
• By cleaving, which involves a string of subsequent cell divisions, this task is completed. Blastomeres are the cells that are created during cleavage.
• The divisions are mitotic, which means that each chromosome in the nucleus divides into two daughter chromosomes, preserving the diploid number of chromosomes in the two daughter blastomeres. The overall volume of living stuff does not significantly change during cleavage, and as a result, there is essentially no growth between successive divisions.
• As a result, the size of the cells is reduced by almost half at each division.

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