- Which of the following is a wrong match?
(a) Bolting in rosette plant – Ga 3.
(b) Avena curvature test – Iaa.
(c) Induction of immediate stomatal closure – aBa
(d) Induction of growth in axillary buds – Ethephon.
- If dark period of ‘corn plant’ is interrupted by flash of
light. Yield of crop will
(a) increase (b) become zero
(c) reduced (d) remain unchanged.
- Environmental heterophylly is shown by
(a) coriander (b) buttercup
(c) larkspur (d) cotton.
- how many of the following is/are wrong statement/s?
(j) Gibberellins are derivative of carotenoids.
(k) movement shown by “touch me not plant” on
touch is a paratonic, turgor and seismonasty. It is
due to outward movement of K+ from pulvinus of
compound leaf.
(l) Photoperiodic stimulus was picked up by shoot
apical meristem.
(m) hormone used to maintain weed free grass lawns is
2, 4D.
(n) Stress hormone is aBa.
(a) 2 (b) 3 (c) 1 (d) 5
- a plant flower thrice an year in july, october and
december. The plant will be
(a) photosensitive and thermoinsensitive
(b) photoinsensitive and thermosensitive
(c) photo and thermosensitive
(d) photo and thermo insensitive.
- If an organism shows limited growth then which of the
following graphs indicates its rGr progression?
(a) (b)
(c) (d)
- To find rQ in a set respirometer where water level falls
the rQ will be
(a) < 1 (b) > 1 (c) = 1 (d) zero.
- Instrument used to measure growth in plants is
(a) phytotron (b) crescograph
(c) clinostat (d) heliotropic chamber.
- On the basis of correlation, find the correct option from
columns.
Column I Column II Column III
I. Foolish plant a. Volatile
hormone
1.Induces
dormancy
II. Induces
senescence
B. Ga 2.ripens fruit
c. Zeatin 3.Usually
sterile plant
(a) I-a-2, II-c-1 (b) I-c-3, II-B-3
(c) I-B-3, II-a-2 (d) I-B-1, II-c-2
- Four coleoptiles are taken for experiment as shown
below.
Light
Blade (blockage)
Which coleoptiles will not bend toward the light?
choose the correct option.
(a) a and B (b) c and D
(c) a, B and c (d) c and B
- Which of the following is incorrectly matched?
(a) Explant → Excised plant part used for callus
formation
(b) aBa → root initiation in callus
(c) Somatic embryo → Embryo produced from a
vegetative cell
(d) anther culture → haploid plants
- match the following columns and select the correct
option.
Column I Column II
a. Zeatin 1. Flowering hormone
B. Florigen 2. Synthetic auxin
c. Iaa 3. cytokinin
D. Naa 4. Natural auxin
(a) a-3, B-4, c-1, D-2 (b) a-2, B-1, c-4, D-2
(c) a-1, B-2, c-3, D-4 (d) a-3, B-1, c-4, D-2
