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Reproduction in Plants

Description: Reproduction in Plants
Number of Questions: 10
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Tags: Reproduction in Plants Reproduction in plants
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Which of the following plants are propagated through underground roots?

  1. Bryophyllum and kalanchoe

  2. Ginger, potato and onion

  3. Pisita, chrysanthemum and pineapple

  4. Sweet potato, asparagus and dahlia


Correct Option: D
Explanation:

Sweet potato, asparagus and dahlia are propagated through underground roots.

Which of the following parts of onion is/are used for vegetative propagation?

  1. Tubers

  2. Bulbs

  3. Seed

  4. Rhizomes


Correct Option: B
Explanation:

Bulbs of onion are used for vegetative propagation.

Which of the following is the receptive structure for pollens?

  1. Stigma

  2. Style

  3. Ovary

  4. Ovule


Correct Option: A
Explanation:

Stigma serves as the receptive structure for pollens.

Which of the following parts is called future shoot of a germinating seed?

  1. Cotyledon

  2. Plumule

  3. Radicle

  4. Petal


Correct Option: B
Explanation:

Plumule is called future shoot of a germinating seed.

Which of the following types of movement is performed by pollen tube towards embryo sac?

  1. Thigomotactic

  2. Thermotactic

  3. Chemotactic

  4. Phototactic


Correct Option: C
Explanation:

Chemotactic movement is performed by pollen tube towards embryo sac.

Which of the following plants has lost its ability to produce seeds?

  1. Apple

  2. Pear

  3. Peach

  4. Banana


Correct Option: D
Explanation:

Banana has lost its ability to produce seeds.

What do you call the development of seedless fruit in an unfertilised flower?

  1. Parthenocarpy

  2. Sporophytic budding

  3. Polyembryony

  4. Micropropagation


Correct Option: A
Explanation:

The development of seedless fruit in an unfertilised flower is called parthenocarpy.

What do you call the pollination performed by bats?

  1. Entomophily

  2. Ornithophily

  3. Cheiropterophily

  4. Hydrophily


Correct Option: C
Explanation:

The pollination performed by bats is called cheiropterophily.

How does a pollen tube usually enter the embryo sac?

  1. Through one of the synergids

  2. Through direct penetration of the egg

  3. Between one synergid and central cell

  4. By knocking off antipodal cells


Correct Option: A
Explanation:

A pollen tube usually enters the embryo sac through one of the synergids.

Double fertilisation means the fusion of

  1. one male gamete with the egg and the other with the antipodal cell

  2. one male gamete with the egg and the other with the secondary nucleus

  3. one male gamete with the egg and the other with the synergids

  4. two male gametes with the egg


Correct Option: A
Explanation:

Double fertilisation means the fusion of one male gamete with the egg and the other with the antipodal cell.

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