Vegetative Propagation

Q.

Non-motile spores produced by lower plants like algae are termed as-

1. Zygospores

2. Aplanospores

3. Zoospores

4. Spores

Q.

The motile spores produced by lower plants like algae are termed as-

1. Aplanospores

2. Zygospores

3. Zoospores

4. Spores

Q. Which of the following statements is incorrect related to stem modifications?

1. Runners are wide, brown, creeping horizontal stems with long internodes.
2. Offsets are sub-aerial modification seen in the aquatic plants.
3. Runners arise from an axillary bud present at the base of the stem.
4. Weak lateral branches arising from the base of the main stem are called stolons.

Q.

Why tissue culture is called micropropagation?

Q.

Which part of the plant Bryophyllum performs vegetative reproduction?

1. Stem

2. Floral buds

3. Underground roots

4. Buds on leaf margin

Q.

Example of rhizome is:

1. Potato

2. Ginger

3. Onion

4. Garlic

Q. Why does water hyacinth spread all over the water body in such a short period of time that it is challenging to get rid of them?

1. It efficiently absorbs the nutrients from water.
2. It can propagate vegetatively at a phenomenal rate.
3. It has specialised roots that help in the adaptation of water hyacinth to freshwater easily.
4. None of the above.

Q. Which of the following is not true about vegetative propagation?

1. Vegetative propagation is an asexual method of reproduction in plants.
2. Offspring produced by vegetative propagation are called clones.
3. The units of vegetative propagation such as runner, rhizome, sucker, tuber, offset, bulb are all capable of giving rise to new offspring.
4. Vegetative propagation in banana occurs by bulbil.

Q.

Which of the following are the FALSE?

I. Reproduction takes place in a juvenile stage of life cycle.

II. Eyes of potato tuber are condensed internode.

III. During embryogenesis, zygote undergoes cell division and cell differentiation.

IV. Sexual reproduction is a complex and elaborate process.

1. I and III

2. II and III

3. I and II

4. III and IV

Q.

Study the following table

Plant Modified part Name of modification Purpose

1. Pistia Stem Offset Reproduction

2. Pea Stem Tendril Climbing

3. Opuntia Leaf Phyllode Photosynthesis

4. Bougainvillea Leaf Spine Protection

Which of the above show correct combinations?

1. 1 only

2. 3 and 4

3. 1 and 2

4. 1, 2, 3 and 4

Q. Structures like runner, rhizome, sucker, tuber, offset, bulb, etc. which are capable of giving rise to new offspring are called______________.

1. gametes
2. vegetative propagules
3. spores
4. none of the above

Q.

Consider the following statements and select the correct option

(A) Intercalary meristems occur in grasses.

(B) Apical meristems and intercalarylmeristems are primary meristems.

(C) Fascicular cambium, interfascicular cambium cork cambium are examples of lateral meristems

(D) In a young dicot root, cambium is absent.

1. All the above statements are correct

2. All the above statements are wrong

3. Statements a and b are correct, c and d are wrong

4. Statements c and d are correct, a and b are wrong

Q.

What are the buds of the potato tuber called?

Q. The eye of the potato tuber represents

1. bulb
2. node
3. root bud
4. none of the above

Q. Choose the incorrect statement/statements from the following statements.
I) Amoeba can only reproduce by process of binary fission.
II) In Bryophyllum vegetative propagation occurs by leaf buds.
III) The lifespan of a parrot is 15 years.
IV) During unfavourable conditions, a phenomenon called encystation occurs in Paramecium.

1. I, II and IV
2. II and III
3. I, III and IV
4. III and I

Q. Which of the following pair is not correctly matched?

1. Binary fission - Sargassum
2. Conidia - Penicillium
3. Offset - Water hyacinth
4. Rhizome - Banana

Q.

Low temperature promotion of flowering in plants is

1. Photoperiodism

2. Vernalization

3. Photoblast

4. None of the above

Q. _________ arise from the notches present at margins of leaves of Bryophyllum.

1. Adventitious buds
2. Tuber
3. Axillary buds
4. None of the above

Q. Which method of artificial vegetative propagation has been depicted in the diagram given below?

1. Layering
2. Grafting
3. Cutting
4. Suckering

Q. Which of the following sentence is true for vegetative propagation?

1. It enables the production of genetic variation
2. It is an ancient practice
3. It is a means of producing large population of genetically identical individuals
4. It produces disease and pest-free progeny

Q. What would you call the parenchyma cells that are made to divide under controlled laboratory conditions during plant tissue culture ?

Q.
Which of the following statements is true about gemmules?

1. They are endogenous spores
2. They are exogenous spores
3. They are seen in Penicilium
4. None of the above

Q.

Mango is propagated through

1. Rhizome

2. Grafting

3. Stem cutting

4. Layering

Q. Identify ‘a’ and its function.

1. ‘a’- rhizome - vegetative propagation in potato
2. ‘a’- bulbil - absorption of nutrients
3. ‘a’ - eyes - vegetative propagation in potato
4. ‘a’- adventitious bud - absorption of water

Q. Offset is a type of ___________.

1. root
2. sub-aerial stem
3. underground stem
4. none of the above

Q.

Which of the following options is/are mismatched?

1. Banana - Rhizome

2. Potato - Tuber

3. Water hyacinth - Stolon

4. Onion - Bulb

Q. in dicot stem the vascular cambium is partially primary & partially secondary in origin

Q. Tabulate various differences between phyllode and phylloclade

Q. Explain stolon and offset in sub aerial stem modification

Q.

In plants, reproduction not involving flower is:

1. Vegetative reproduction

2. Parthenogenesis

3. Copulation

4. Apomixis