Assertion :All copulations do not lead to the fertilisation and pregnancy. Reason: Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullary - isthmic junction.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary-isthmic junction and ovum is released only once a month. This is the reason why all copulations do not lead to fertilisation and pregnancy.

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Similar questions

Q. Assertion (A): All copulations cannot lead to fertilisation and pregnancy
Reason (R): Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary region

Q. Choose the correct option with respect to the assertion and reason given.
Assertion (A): Not all copulations lead to fertilisation and pregnancy in human beings.
Reason (R): Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary region of the fallopian tube.

Q. Choose the correct option with respect to the assertion [A] and reason [R] given.
Assertion(A): Not all copulations lead to fertilisation and pregnancy.
Reason (R): One reason can be that sperms and ovum are not transported simultaneously to the region where fertilisation occurs.

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

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