EASY
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Axillary bud and terminal bud are derived from the activity of _______

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Important Questions on Tissue and Tissue System

MEDIUM

Identify A, B and C in the given diagram of shoot apical meristem ?

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EASY
Select the correct combination?
(i) Fruit wall of nuts
(ii) Pulp of fruit like guava and pear
(iii) Seed coat of legumes
(iv) Micropyle of pea
EASY
Which of the following plants tissues cannot be used as explant in tissue culture?
HARD

Which of the following are the characteristic features of phloem?

i) Gymnosperms have albuminous cells and sieve cells

ii) Presence of tracheids

iii) They store food materials in the form of starch or fat

iv) They have sieve tube elements that are long, tube-like structures

v) Their end walls are perforated in a sieve like manner

The correct combination is

EASY
A chilly plant was severely infected with Chilly Mosaic Virus (CMV). Identify the technique that helps to raise virus free plants in the next generation from the above virus infected plant.
EASY
Read the following three statements (A-C) and select the option which includes all the correct ones only

i. During primary growth of plant-specific regions of the apical meristem produce dermal tissue, ground tissue, and vascular tissue.

ii. In plants, growth is restricted to specialized regions of active cell division

iii. Secondary meristems are also known as cylindrical meristems
EASY
Which of the following reacts with haemoglobin of blood and causes toxic effect?
HARD
Describe the structure and organisation of stem apex.
EASY

On the basis of the given diagram, find out the correct option:-
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MEDIUM
Which of the following pollutants are present in troposphere?
MEDIUM
A leaf primordium grows into the adult leaf lamina by means of