The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because:

1. Offspring do not possess exact copies of parental DNA
2. DNA of only one parent is copied and passed on to the offspring
3. Offspring are formed at different times
4. DNA of the parent and offspring are completely different.

Subtopic:  Asexual Reproduction |
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Asexual method of reproduction by binary fission is common to which of the following?

1. Some eukaryotes
2. All eukaryotes
3. Some prokaryotes
4. All prokaryotes

Choose the correct option from the following:

1. i and ii  2. ii and iii
3. i and iii  4. iii and iv
Subtopic:  Asexual Reproduction |
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A few statements with regard to sexual reproduction are given below:

i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilisation is a rule during sexual reproduction
Choose the correct statements from the options below:
1. i and iv 2. i and ii
3. ii and iii 4. i and iii
Subtopic:  Sexual Reproduction |
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A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of a zygote. The adult filament of this alga has:

1. haploid vegetative cells and diploid gametangia

2. diploid vegetative cells and diploid gametangia

3. diploid vegetative cells and haploid gametangia

4. haploid vegetative cells and haploid gametangia

Subtopic:  Sexual Reproduction |
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The male gametes of a rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote, and the cells of the seedling will be, respectively:

1. 12, 24, 12 2. 24, 12, 12
3. 12, 24, 24 4. 24, 12, 24
Subtopic:  Sexual Reproduction |
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Given below are a few statements related to external fertilization. Choose the correct statements.

i. The male and female gametes are formed and released simultaneously.
ii. Only a few gametes are released into the medium.
iii. Water is the medium in a majority of organisms exhibiting external fertilization.
iv. Offspring formed as a result of external fertilization have a better chance of survival than those formed inside an organism.
 
1. iii and iv 2. i and iii
3. ii and iv 4. i and iv
Subtopic:  Sexual Reproduction |
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The statements given below describe certain features that are observed in the pistil of flowers.

i. Pistil may produce more than one seed.

ii. Each carpel may have more than one ovule.

iii. Each carpel has only one ovule.

iv. Pistil has only one carpel.

Choose the statements that are true from the options below:

1. i and ii 2. i and iii
3. ii and iv 4. iii and iv

Subtopic:  Sexual Reproduction |
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Which of the following situations correctly describes the similarity between an angiosperm egg and a human egg?

1. Eggs of both are formed only once in a lifetime
2. Both the angiosperm egg and human egg are stationary
3. Both the angiosperm egg and human egg are mobile
4. Syngamy in both results in the formation of zygote

Choose the correct answer from the options given below:
1. ii and iv 2. iv only
3. iii and iv 4. i and iv

Subtopic:  Sexual Reproduction | Events during Sexual reproduction |
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Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because:

1. Nodes are shorter than internodes
2. Nodes have meristematic cells
3. Nodes are located near the soil
4. Nodes have non-photosynthetic cells

Subtopic:  Asexual Reproduction |
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Which of the following statements supports the view that elaborate sexual reproductive processes appeared much later in organic evolution?

i. Lower groups of organisms have a simpler body design
ii. Asexual reproduction is common in lower groups
iii. Asexual reproduction is common in higher groups of organisms
iv. The high incidence of sexual reproduction in angiosperms and vertebrates
Choose the correct answer from the options given below:
1. i, ii, and iii 2. i, iii, and iv
3. i, ii, and iv 4. ii, iii, and iv
Subtopic:  Asexual Reproduction |
 83%
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