Assertion : Gastrular movements are morphogenetic.
Reason : During gastrulation, cells move in masses and towards definite direction.

Both Assertion and Reason are true and Reason is a correct explanation of Assertion

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Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

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Assertion is true but Reason is false

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Both Assertion and Reason are false

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Assertion is false but reason is true.

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Solution

The correct option is A Both Assertion and Reason are true and Reason is a correct explanation of Assertion
Gastrulation is a process by which blastocyst is changed into gastrula larva with three primary germ layers. In this cells of blastodermic vesicle visibly move in small masses to their final and predetermined positions. These movements are interdependent and are called morphogenetic movements.

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Assertion : Gastrular movements are morphogenetic.Reason : During gastrulation, cells move in masses and towards definite direction.

Assertion : Gastrular movements are morphogenetic.
Reason : During gastrulation, cells move in masses and towards definite direction.