Flowers borne on the shoot system of a plant serve as reproductive part. Which of the following reasons supports this statement ?

P. Flowers bear stamens and carpels.
Q. Flowers make the plant attractive.
R. Flowers produce fruits with seeds.

1. Only P
2. Only Q
3. Only P and R
4. Only Q and R

Mamta is curious to study different kinds of pollination among flowers present in her garden. She has performed artificial pollination in the following ways :

P. Pollination within a flower.
Q. Pollination between flowers of same plant.
R. Pollination between two flowers of two different plants of same species.
S. Pollination between two flowers of two different plants of the different species.

Which of the ways given abo explains 'cross-pollination'?

1. Only R
2. Only P, Q and S
3. Only P, R and S
4. Only P and S

Assertion (A): The edible portion of potato plant is the root as it grows and develops under the soil.

Reason (R): The root is swollen due to the storage of food material which is rich in starch.

1. Both A and R are true.
2. Both A and R are false.
3. A is true and R is false.
4. A is false and R is true.

Assertion (A): Carrot is a biennial plant which stores food material in its roots in the first year.

Reason (R): This food is utilized in the second year to produce flowers and viable seeds, i.e. to reproduce sexually.

1. Both A and R are true.
2. Both A and R are false.
3. A is true and R is false.
4. A is false and R is true.