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Plant Reproduction (XII)

Description: XII CBSE reproduction in flowering plants, Biology, XII science, XII botany, Medical entrance practice tests
Number of Questions: 25
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Tags: XII CBSE XII CBSE Reproduction Reproduction Plants Biology XII Science XII Botany Medical Entrance Introduction to Asexual Reproduction Asexual Reproduction Reproductive Organs of Plants Sexual Reproduction in Flowering Plants
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____ reproduction(s) is/are called vegetative reproduction(s).

  1. Asexual

  2. Sexual

  3. Both 1 and 2

  4. Non sexual


Correct Option: A

Male and female gametes fuse to form the _____.

  1. zygote

  2. bud

  3. nodes

  4. sapling


Correct Option: A

The organs that are modified to help the plant in vegetative propagation are _________.

  1. roots

  2. leaves

  3. stems and buds

  4. All the above


Correct Option: D

The production of ______ seeds has also been possible through tissue culture.

  1. natural

  2. synthetic

  3. non synthetic

  4. All the above


Correct Option: B

The portion to be grafted on to the stock is called ______.

  1. branch

  2. layers

  3. scion

  4. None of the above


Correct Option: C

________ plant(s) is/are propagated through roots.

  1. Tapioca

  2. Asparagus

  3. Dahila

  4. All the above


Correct Option: D

Directions: Choose the correct one of the following options

________ plants are propagated through roots.

  1. Bryophyllum

  2. Kalanchoe

  3. Both 1 and 2

  4. None of the above


Correct Option: B
Explanation:

 Kalanchoe plants are propagated through roots and Bryophyllum reproduce by vegetative propagation through leaves.

Germ cells are ___________.

  1. male gametes

  2. female gametes

  3. Both 1 and 2

  4. None of the above


Correct Option: C

Stem cutting plant(s) is/are __________.

  1. sugarcane

  2. rose

  3. croton

  4. All the above


Correct Option: C

Grafting can be done in the plants that have ______ roots.

  1. strong

  2. week

  3. small

  4. branched


Correct Option: B

The common method(s) used for propagation is/are __________.

  1. stem cutting

  2. root cutting

  3. layering

  4. All the above


Correct Option: C

Different types of grafting are __________.

  1. bud grafting and crown grafting

  2. approach grafting and tongue grafting

  3. wedge grafting and crown grafting

  4. All the above


Correct Option: D

Root cuttings can be taken from ________ plant/s.

  1. lemon

  2. tamarind

  3. Both 1 and 2

  4. None of the above


Correct Option: C

Stamen is the ______ unit.

  1. female reproductive

  2. male reproductive

  3. basic cell

  4. respiration


Correct Option: B

Stamen is made up of ____________.

  1. anther

  2. filament

  3. Both A and B

  4. None of the above


Correct Option: C

Artificial method(s) of vegetative propagation is/are ________.

  1. cutting

  2. propagating

  3. layering

  4. All the above


Correct Option: D

The special modes of propagation are __________.

  1. parthenogenesis

  2. sporophytic budding

  3. polyembryony and apomixes

  4. All the above


Correct Option: D

Anther is generally ___________.

  1. multi lobed

  2. bi lobed

  3. six lobed

  4. five lobed


Correct Option: B

In Agave, buds develop near the ____________.

  1. stem

  2. root

  3. flower

  4. leaf


Correct Option: C

Gootee is a method usually employed for propagating _______ during the early monsoon rains.

  1. lemon

  2. orange

  3. guava and litchi

  4. All the above


Correct Option: D

Intine is the ______ layer of pollen grain.

  1. outer

  2. inner

  3. middle

  4. outermost


Correct Option: B

The anther wall is composed of _____ layer(s).

  1. single

  2. double

  3. four to five

  4. no


Correct Option: C

Grafting can be done in ______ plant/s.

  1. mango

  2. apple

  3. citrus

  4. All the above


Correct Option: D

Grafting is of ______ type/s.

  1. two

  2. one

  3. more than two

  4. None of the above


Correct Option: C

The pollen grain is ______ nucleated.

  1. uni

  2. bi

  3. poly

  4. None of the above


Correct Option: A
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