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

Which of the following statement is correct?

1. Strobilanthus Kunthinan flowers once in 12 years

2. Formation of the diploid embryo is universal in all sexually reproducing organisms

3. In the majority of organisms, both male and female gametes are stationary

4. Sexual reproduction is an elaborate, complex and rapid process as compared to asexual reproduction

Match correctly with respect to mode of propagation

1. Adventitious bud      -  Potato tuber

2. Offset                       -  Lotus

3. Seed                        -  Cereal

4. Rhizome                  -  Terror of Bengal

Algae and fungi resort to sexual reproduction because

1. It is more rapid form of propagation

2. Zygote as with its thick wall make them able to withstand unfavourable conditions

3. Formation of zygote is universal event

4. Every organism begins life as a single cell 

male and female flowers are present on same plant in all of these, except

1. Cucurbits

2. Coconuts

3. Maize

4. Date palm

Gametes are haploid. It signifies that

1. They cannot be formed without meiosis

2. They always have half the number of chromosomes than that of main plant body

3. Bryophytes produce them by mitosis

4. Bryophytes do not show meiosis since plant body is haploid