Biology Botany Online Mock Test JIPMER,NEET UG,AIIMS,Medical exam

NEET UG Botany MCQ-57

Question No:1

(A): Stolons are commonly found in shrubs
(R): An underground branch that grows obliquely upwards and propagates vegeta-tively is stolon.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:2

(A): Suckers help in vegetative propagation
(R): Agave reproduces vegetatively by suckers

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:3

(A): Axillary bud is modified into hook in Hugonia.
(R): Hooks in plants serve as defensive organs.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:4

(A): Root bulbils are present in Oxalis
(R): Oxalis produces adventitious roots at every node.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:5

(A): Modified petiole provides mechanical support in clematis
(R): Tendrillar petiole is present in Clematis

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:6

(A): Parallel venation is present in Eryngium leaves.
(R): Eryngium is a monocot plant

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:7

(A): Multicostate divergent reticulate venation is present in the leaves of passiflora.
(R): Midveins that arise from the base of the lamina converge at the tip in passiflora.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:8

(A): Flowers in Cyathium inflorescence are highly reduced.
(R): Male and female flowers in cyathium are achlamydeous and monocyclic.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:9

(A): Flowers open in centripetal manner in umbel
(R): Peduncle is condensed in umbel

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:10

(A): Peduncle is weak and hanging in catkin infloresence.
(R): Unisexual flowers are arranged in acropetal manner in catkin.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:11

(A): Three flowered cyme is found in Bougainvillea
(R): When penducle terminates the growth, three branches develop.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:12

(A): Flowers are small reduced to florets in Helianthus
(R): Peduncle is highly condensed, flat and is present as receptable in head inflorescence.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:13

(A): Helicoid cyme is present in Hamelia.
(R): Hamelia, has branches of peduncle arranged in scorpioid manner.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:14

(A): Nepenthes has modified trapleaf called pitcher.
(R): Digestive glands are present along the rim of pitcher

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:15

(A): A succulent leaf with adventitious buds is in bryophyllum.
(R): Bryophyllum produces adventitious buds from injured parts of the leaf.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:16

(A): Rachis is absent in pinnate compound leaves
(R): Leaflets are at the tip of the petiole in pinnate compound leaves.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:17

(A): Acalypha has leaves arranged in many orthostiches.
(R): More than two leaves develop from each node in Acalypha.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:18

(A): Scale leaves are dry membranous modified leaves found in xerophytes.
(R): Scale leaves reduce the rate of transpiration

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:19

(A): In Tamarindus rachis terminates in a pair of leaflets
(R): Rachis branches once in unipinnate compound leaves.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong

Question No:20

(A): Cladode bears inflorescence in Ruscus.
(R): Modified aerial stem or branch that performs photosynthesis is called cladode.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false
(D) Both (A) are (R) wrong