The hormone which has positive effect on apical dominance is:

(a)

Cytokinin

(b)

Auxin

(c)

Gibberellin

(d)

Ethylene

Which one of the following hormones is naturally not found in plants.

(a)

2, 4-D

(b)

GA3

(c)

Gibberellin

(d)

IAA

Avena coleoptile test was conducted by

(a)

Darwin

(b)

N. Smit

(c)

Paal

(d)

F.W. Went

LH is secreted by

(a)

Adrenal gland

(b)

Thyroid gland

(c)

Anterior pituitary

(d)

Hypothalamus.

Which organ acts as both exocrine gland as well as endocrine gland

(a)

Pancreas

(b)

Kidney

(c)

Liver

(d)

Lungs