1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
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
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
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
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The first phase of translation is
A
Recognition of an anti-codon
B
Recognition of DNA molecule
C
Binding of mRNA to ribosome
D
Aminoacylation of tRNA
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Name the enzyme that facilitates opening of DNA helix during transcription.
A
DNA polymerase
B
RNA polymerase
C
DNA helicase
D
DNA ligase
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