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Significance of Meiosis

In indetermin...

Question

In indeterminate cleavage, the fate of blastomeres is fixed at which of the following stage?

A

Blastula

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B

Gastrulation

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C

32-celled stage

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D

64-celled stage

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Solution

The correct option is A Blastula
A cell be indeterminate, if it has a complete set of undisturbed animal/vegetal features. In deuterostome, embryo divides to produce two cells and each one can individually develop into a whole organism. Here, the fate of blastomeres is determined at the blastula stage.
Thus, the correct answer is option A.

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Similar questions

Q. Which of the following statements are true about protostomes?
(A) Cleavage spindles or planes are oblique to the polar axis of the zygote.
(B) Cleavage spindles or planes are at right angles to the polar axis of the zygote.
(C) The fate of blastomeres is fixed early in the development.
(D) The fate of blastomeres is fixed relatively late in the development.

Q. In which of the following techniques, the embryo at 8-celled blastomere stage is transferred to the uterus?

Q. How many cleavages are completed in 16 celled stage of egg?

In the morula stage, the cell divides without increases in size.

Reason: Zona pellucida remains till cleavage.

Q. Assertion :In morula stage the cell divides without increase in size. Reason: Zona pellucida remains till cleavage is finished.

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