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Q. No.
Given below are two statements:
Assertion (A):
The gametes produced in some algae are called as isogametes.
Reason (R):
Isogametes of algae are so similar in appearance that it is not possible to categorise them into male and female gametes.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Events during Sexual reproduction |
77%
From NCERT
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Given below are two statements:
| Assertion (A): | In a majority of plants, syngamy occurs inside the body of an organism. |
| Reason (R): | Higher animals such as reptiles, birds and mammals generally exhibit internal fertilization. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Events during Sexual reproduction |
62%
From NCERT
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Given below are two statements:
| Assertion (A): | Meiocyte is a cell which undergoes reductional division and contains two sets of chromosomes in diploid organism. |
| Reason (R): | In meiocyte of onion, there are 16 chromosomes. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Sexual Reproduction | Events during Sexual reproduction |
71%
From NCERT
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Given below are two statements:
| Assertion (A): | Term 'clone' can be used to describe morphologically and genetically similar individuals. |
| Reason (R): | In protists and monerans, cell division is itself a mode of reproduction. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Asexual Reproduction |
80%
From NCERT
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Given below are two statements:
| Assertion (A): | In flowering plants, the zygote is formed inside the ovule. |
| Reason (R): | The process of development of embryo from zygote is called embryogenesis. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Sexual Reproduction |
82%
From NCERT
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Given below are two statements:
| Assertion (A): | Reproduction enables the continuity of species generation after generation. |
| Reason (R): | Organism's habitat, its internal physiology and several other factors are responsible for how it reproduces. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Introduction |
76%
From NCERT
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Amongst the following animals, the least life span is of
1. Crocodile
2. Crow
3. Tortoise
4. Parrot
1. Crocodile
2. Crow
3. Tortoise
4. Parrot
Subtopic: Introduction |
87%
From NCERT
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Sexual reproduction is different from asexual reproduction as the former
1. Involves gamete formation
2. Never include single parent
3. Involves fusion of gametes
4. Produce genetically identical offsprings
1. Involves gamete formation
2. Never include single parent
3. Involves fusion of gametes
4. Produce genetically identical offsprings
Subtopic: Introduction |
68%
From NCERT
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In which plant, adventitious buds arises from the notches present at margins of leaves and help in vegetative propagation?
1. Banana
2. Bryophyllum
3. Water hyacinth
4. Sugarcane
1. Banana
2. Bryophyllum
3. Water hyacinth
4. Sugarcane
Subtopic: Asexual Reproduction |
91%
From NCERT
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The term clone is used to describe the individuals which are
| 1. | Produced by budding and are morphologically different |
| 2. | Morphologically and genetically similar |
| 3. | the offsprings and genetically similar |
| 4. | Morphologically similar but genetically can be different |
Subtopic: Asexual Reproduction |
91%
From NCERT
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