Common vegetative propagule, capable, of giving rise to new individuals in Agave is

1. Leaf bud

2. Bulbil

3. Rhizome

4. Offset

Read the following statements carefully

a. Neelakuranji flowers once in 12 yeats

b. In the majority of organisms, male and female gametes are motile

c. During embryogenesis, the zygote undergoes mitosis and cell differentiation

1. All are correct

2. Only (b) is incorrect

3. All are incorrect

4. (a) and (b) are correct

Sexual reproduction is

1. Fast and simple process

2. Slow and simple process

3. Fast and complex process

4. Slow and complex process

Rhizomes are commonly used in vegetative propagation of

1. Water hyacinth

2. Bryophyllum

3. Ginger

4. Agave

Eichhornia crassipes

1. Multiplies rapidly wherever there is running water

2. Propagates vegetatively with the help of suckers

3. Was introduced in Indian waters because of its beautiful root, stem, and leaves

4. Multiplies rapidly in stagnant water

Clones cannot be obtained from

1. Rhizome

2. Tuber

3. Sucker

4. Zygote

Mark the correct statement ( with respect to reproduction)

1. A biological process to produce new offsprings

2. Enables the continuity of the species, generation after generation

3. Incorporates genetic variations and makes the basis of evolution

4. More than one option is correct

Match column I with column II and select the correct option

  Column I                  Column II

a. Offest                    (i)

b. Tuber                    (ii) 

c. Rhizome               (iii) 

d. Bulbil                    (iv) 

1. a(i), b(iv), c(iii), d(ii)

2. a(i), b(iv), c(ii), d(iii)

3. a(iv), b(i), c(iii), d(ii)

4. a(i), b(ii), c(iii), d(iv)

Consider the following statements (a-d) about "terror Bengal"

a. An aquatic plant which can propagate vegetatively at a phenomenal rate

b. One of the most invasive weeds growing in standing water

c. It drains oxygen from water which leads to the death of fishes

d. It was introduced in Bengal because of its beautiful flowers and shape of fruits

Which of the above statements are correct?

1. b & d

2. a & d

3. a & b only

4. a, b & c

In angiosperms plants, embryogenesis

1. Refers to the process of development of zygote from embryo

2. Involves cell division and cell differentiation

3. Refers to the process of development of embryo from zygophore

4. Involves meiotic as well as mitotic divisions