A : Ethylene inhibits logitudinal growth of root stem and leaves.
R : Ethylene is growth inhibitor, maturation hormone.
A. (a) A and R both correct, R is explanation of A.
B. (b) A and R both correct but R is not explanation A.
C. (c) A = correct, R = false
D. (d) A = false, R = correct
Answer : Option A
A : Seed is active condensed plant.
R : It shows specific dormancy and get activated.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option A
A : Adventitious roots develop by auxin in plants.
R : Auxin, removes the dominant effect of apical bud.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option B
A : Cytokinin is cytoplasmic hormone.
R : Cytokinin induced cell division.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option D
A : Nastism is undirectional.
R : Induced factors are essential for nastism.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option A
A : Nastism is undirectional.
R : Induced factors are essential for nastism.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option C
A : Flowering is natural phenomenon in plants.
R : If photoperiodism is fixed, increases flowering in plants.
A. A and R both correct, R is explanation of A.
B. A and R both correct but R is not explanation A.
C. A = correct, R = false
D. A = false, R = correct
Answer : Option B