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
Which of the following structure represents vital link between two successive generations?
1. Spore mother cell
2. Zygote
3. Antheridium
4. Zygophore
Term 'vegetative reproduction' is frequently used in
1. Plants
2. Monerans
3. Animals
4. Both plants and animals
Select the odd one with respect to asexual reproduction
1. Need of both male and female parents
2. Produces a number of individuals
3. Rapid method
4. Absence of haploid - diploid alternation
Most vital event of sexual reproduction is
1. Embryogenesis
2. Essential for the fusion of gametes
3. Pollination
4. Development of fruits