In asexual reproduction, two offsprings having the same genetic material and the same body features are called:

A. callus

B. twins

C. clones

D. chromosomes

An organism which can reproduce by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is :

A. Spirogyra

B. Bryophyllum

C. Hydra

D. Sea anemone

Stock and scion are involved in the artificial propagation method known as :

A. tissue culture

B. layering

C. grafting

D. cuttings

The method of asexual reproduction in plants in which callus is produced is :

A. micropropagation

B. vegetative propagation

C. regeneration

D. fragmentation

A Planaria worm is cut horizontally in the middle into two halves P and Q such that the part P contains the whole head of the worm. Another Planaria worm is cut vertically into two• halves R and S in such a way that both the cut pieces R and S contain half head each. Which of the cut pieces of the two Planaria worms could regenerate to form the complete respective worms ?

A. only P

B. only R and S

C. P, Rand S

D. P, Q, R and S