1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements about histones is wrong?
A
Histones carry positive charge in the side chain
B
Histones are organized to form a unit of 8 molecules
C
The pH of histones is slightly acidic
D
Histones are rich in amino acids - Lysine and Arginine
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Statement I : The codon 'AUG' codes for methionine and phenylalanine.

Statement II : 'AAA' and 'AAG' both codons code for the amino acid lysine.

In the light of the above statements, choose the correct answer from the options given below.
A
Statement I is incorrect but Statement II is true
B
Both Statement I and Statement II are true
C
Both Statement I and Statement II are false
D
Statement I is correct but Statement II is false
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately
A
2.7 meters
B
2.0 meters
C
2.5 meters
D
2.2 meters
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is correct?
A
Adenine does not pair with thymine
B
Adenine pairs with thymine through one H-bond
C
Adenine pairs with thymine through two H-bonds
D
Adenine pairs with thymine through three H-bonds
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