Which one of the following generates new genetic combinations leading to variation?

(1) Vegetative reproduction

(2) Parthenogenesis

(3) Sexual reproduction

(4) Nucellar polyembryony

Which one of the following is wrong about Chara?

(1) Upper oogonium, and lower round anthredium

(2) Globule and nucule present on the same plant

(3) Upper anthredium and lower oogonium

(4) Globule is male reproductive structure

The 'Eyes' of the potato tuber are 

(1) flower buds

(2) shoot buds

(3) axillary buds

(4) root buds

Which of the following animals is not viviparous?

1. Flying fox (bat)               

2. Elephant

3. Platypus

4. Whale

The plant part which consists of two generations, one within the other, is

1. germinated pollen grain

2. embryo

3. unfertilized ovule

4. seed

A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of 

(1) stock

(2) scion

(3) both stock and scion

(4) neither stock nor scion.

Which form of reproduction is correctly matched?

(1) Euglena → transverse binary fission

(2) Paramecium → longitudinal binary fission

(3) Amoeba → multiple fission

(4) Plasmodium → binary fission

The ploidy of bread wheat is 

(1) 4 n

(2) 6 n

(3) 2 n

(4) 8 n

Life span of parrot is 

(1) 140 years

(2) 60 years

(3) 80 years

(4) 40 years

No individual is immortal except:

(1) Single celled organisms

(2) Green plants

(3) Sponges

(4) Drones