1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

The gaseous plant growth regulator is used in plants to:

A
speed up the malting process
B
promote root growth and roothair formation to increase the absorption surface
C
help overcome apical dominance
D
kill dicotyledonous weeds in the fields
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements:

Statement I : Cleistogamous flowers are invariably autogamous

Statement II : Cleistogamy is disadvantageous as there is no chance for cross pollination

In the light of the above statements, choose the correct answer from the options given below :

A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Exoskeleton of arthropods is composed of:

A
Cutin
B
Cellulose
C
Chitin
D
Glucosamine
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Read the following statements and choose the set of correct statements:

(a) Euchromatin is loosely packed chromatin

(b) Heterochromatin is transcriptionally active

(c) Histone octamer is wrapped by negatively charged DNA in nucleosome

(d) Histones are rich in lysine and arginine

(e) A typical nucleosome contains 400 bp of DNA helix

Choose the correct answer from the options given below :

A
(b), (d), (e) only
B
(a), (c), (d) only
C
(b), (e) only
D
(a), (c), (e) only
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