1
NEET 2023
MCQ (Single Correct Answer)
+4
-1

In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as

A
Dedifferentiation
B
Development
C
Senescence
D
Differentiation
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Which one of the following is NOT an advantage of inbreeding?

A
It exposes harmful recessive genes but are eliminated by selection.
B
Elimination of less desirable genes and accumulation of superior genes takes place due to it.
C
It decreases the productivity of inbred population, after continuous inbreeding.
D
It decreases homozygosity.
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The Phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as

A
Secondary growth
B
Differentiation
C
Dedifferentiation
D
Redifferentiation
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

To ensure that only the desired pollens fall on the stigma in artificial hybridization process

(a) the female flower buds of plant producing unisexual flowers need not be bagged.

(b) there is no need to emasculate unisexual flowers of selected female parent

(c) emasculated flowers are to be bagged immediately after cross pollination

(d) emasculated flowers are to be bagged after removal of anthers

(e) bisexual flowers, showing protogyny are never selected for cross

Choose the correct answer from the options given belows

A
(a), (d) and (e) only
B
(a), (b) and (c) only
C
(b), (c) and (d) only
D
(b), (c) and (e) only
NEET Subjects
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedWB JEEBITSATMHT CET
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN