81.
Auxins are abundantly produced in
A
Root
B
Meristematic region of root
C
Shoot
D
Meristematic region of shoot
Answer :
Meristematic region of shoot
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
82.
Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in
A
vessels and tracheid differentiation
B
leaf abscission
C
annual plants
D
floral parts
Answer :
leaf abscission
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
83.
What is the caue of excurrent havit in pinus
A
Presence of gibberellin
B
Presence of apical dominance
C
High concentration of cytokinin
D
High concentration of ABA
Answer :
Presence of apical dominance
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
84.
Gibberellinc acid has been succesfully employed to induce flowering in
A
Short day plants under long day condition
B
In long day plants under short day conditioin
C
For some plants
D
None of the above
Answer :
In long day plants under short day conditioin
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
85.
Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone
A
abscisic acid
B
auxin
C
cytokinin
D
ethylene
Answer :
auxin
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
86.
Richmond lang effect is
A
The effect of kinetins in delaying senescence
B
The effect of auxin on root and shoot formation
C
The effect of traumatic acid is wound formation
D
None of the above
Answer :
The effect of kinetins in delaying senescence
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
87.
Gibberellins can promote seed germination because of their influence on
A
Rate of cell division
B
Production fo hydrolyzing enzymes
C
Sythesis of abscisic acid
D
Absorpition of water through hard seed coat
Answer :
Production fo hydrolyzing enzymes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
88.
An enzyme that can stimulate germination of barley seeds is
A
lipase
B
protease
C
invertase
D
a-amylase
Answer :
a-amylase
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
89.
Cytokinins
A
promote abscission
B
influence water movement
C
help retain chlorophyll
D
inhibit protoplasmic streaming
Answer :
help retain chlorophyll
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
90.
Phytochrome is found is
A
Algae
B
Fungi
C
Gymnosperms
D
Angiosperms
Answer :
Angiosperms
Discuss Question
No explanation is given for this question. Let's discuss the answer together.