Biology : XII-CH01 – Reproduction in Organisms – Assertion and Reason

Read the assertion and reason carefully to mark the correct option.

10 Random question from this chapter are displayed, you can take the quiz multiple times to cover all questions

1 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Plants are defined as monoecious and dioecious

Reason:

Flowers may be bisexual and unisexual.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

2 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Over growth of water hyacinth leads to death of fishes in aquatic body.

Reason:

Water hyacinth drains oxygen from water.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

3 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

In sexual reproduction the offsprings are not identical to parents or amongst themselves.

Reason:

Sexual reproduction involves fusion of male and female gametes.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

4 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

The chance of survival of young ones is greater in viviparous organism.

Reason:

Proper embryonic care and protection is available inside the body of female organism.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

5 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Birds in captivity can be made to lay eggs through the year (poultry farm)

Reason:

Birds lay eggs seasonally.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

6 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Zygote is the vital link that ensures continuity of species between organisms.

Reason:

Most vital events of sexual reproduction is the fusion of gametes.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

7 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Budding and gamete formation are the common asexual methods seen in animals.

Reason:

Asexual method does not involve the formation and fusion of gametes.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

8 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

In angiosperms the ovule develops into a seed after fertilization.

Reason:

Fertilization is not essential for the formation of fruit.

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

Both (A) and (R) are true and (R) is correct explanation of the assertion

9 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion:

Sexual reproduction is a simple and fast process.

Reason:

Asexual reproduction is a complex and slow process

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

10 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Asexual as well as sexual modes of reproduction are exhibited by the higher plants.

Reason: Only sexual mode of reproduction is present in most of the animals.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

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