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Question (21)

QN008109

In fungi, spores are generally produced inside

(A) ovules
(B) pollen sacs
(C) sac-like structures
(D) roots

Correct Answer: C

Explanation:

Fungal spores develop inside sac-like structures.

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Question (22)

QN008110

Which pair correctly matches the organism with its asexual reproductive method?

(A) Hydra — spore formation
(B) Yeast — budding
(C) Potato — pollination
(D) Rhizopus — fertilisation

Correct Answer: B

Explanation:

Yeast reproduces by budding.

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Question (23)

QN008111

A student observes thread-like hyphae with round sacs at the tip under a microscope. The organism is most likely

(A) hydra
(B) yeast
(C) mould fungus
(D) amoeba

Correct Answer: C

Explanation:

Hyphae with sacs are characteristic of mould fungi.

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Question (24)

QN008112

If a potato tuber with 5 viable buds is cut into 5 pieces and each piece is planted separately, how many new plants can potentially develop?

(A) 1
(B) 2
(C) 5
(D) 10

Correct Answer: C

Explanation:

Each viable bud can grow into one new plant.

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Question (25)

QN008113

Why do asexually reproducing organisms usually adapt less effectively to changing environments?

(A) They lack chromosomes
(B) They produce fewer offspring
(C) They show little genetic variation
(D) They cannot reproduce rapidly

Correct Answer: C

Explanation:

Lack of variation reduces adaptability.

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Question (26)

QN008114

Which method of propagation is most useful for preserving desirable traits in crops?

(A) Sexual reproduction
(B) Cross-pollination
(C) Vegetative propagation
(D) Fertilisation

Correct Answer: C

Explanation:

Vegetative propagation preserves desirable traits unchanged.

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Question (27)

QN008115

A cutting is planted at an angle of 45°–60° mainly to

(A) reduce photosynthesis
(B) improve rooting and support
(C) increase pollination
(D) prevent mitosis

Correct Answer: B

Explanation:

Oblique planting improves rooting and stability.

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Question (28)

QN008116

Which statement about clones is correct?

(A) They arise only by sexual reproduction
(B) They are genetically identical individuals
(C) They always show variations
(D) They contain half chromosomes

Correct Answer: B

Explanation:

Clones are genetically identical organisms.

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Question (29)

QN008117

A rose plant produced by grafting combines

(A) two flowers of same branch
(B) root and stem of different plants
(C) spores and buds
(D) pollen and ovule artificially

Correct Answer: B

Explanation:

Grafting joins stem and root parts from different plants.

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Question (30)

QN008118

Which of the following is NOT an example of vegetative propagation?

(A) Ginger
(B) Potato
(C) Bryophyllum
(D) Wheat seed

Correct Answer: D

Explanation:

Wheat reproduces through seeds, not vegetative propagation.

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Question (21)

In fungi, spores are generally produced inside

Explanation:

Link:

Question (22)

Which pair correctly matches the organism with its asexual reproductive method?

Explanation:

Link:

Question (23)

A student observes thread-like hyphae with round sacs at the tip under a microscope. The organism is most likely

Explanation:

Link:

Question (24)

If a potato tuber with 5 viable buds is cut into 5 pieces and each piece is planted separately, how many new plants can potentially develop?

Explanation:

Link:

Question (25)

Why do asexually reproducing organisms usually adapt less effectively to changing environments?

Explanation:

Link:

Question (26)

Which method of propagation is most useful for preserving desirable traits in crops?

Explanation:

Link:

Question (27)

A cutting is planted at an angle of 45°–60° mainly to

Explanation:

Link:

Question (28)

Which statement about clones is correct?

Explanation:

Link:

Question (29)

A rose plant produced by grafting combines

Explanation:

Link:

Question (30)

Which of the following is NOT an example of vegetative propagation?

Explanation:

Link:

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