Prepare for NEET Biology Molecular Basis of Inheritance with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert explanations of DNA replication and genetics.
Which of the following DNA sequences would have the highest melting temperature?
ATATATATAT
AGCTAGCTAG
GCATGCATGC
GCGCGCGCGC
If a segment of double-stranded DNA has 20% adenine, what percentage of guanine would it contain?
20%
30%
40%
50%
Which of the following nitrogenous bases is NOT found in DNA?
Adenine
Guanine
Cytosine
Uracil
The bond that links adjacent nucleotides in a DNA strand is called a:
Peptide bond
Glycosidic bond
Hydrogen bond
Phosphodiester bond
If a DNA molecule contains 20% adenine, what percentage of guanine will it contain?
20%
30%
40%
50%
If the distance between two consecutive base pairs is nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is bp, then the length of the DNA is approximately:
2.2 m
2.0 m
2.5 m
1.8 m
If the total number of base pairs in a human DNA is bp and each base pair extends for nm, what would be the approximate length of the DNA if it were stretched out?
2.2 m
0.22 m
22 m
220 m
A single human cell contains approximately base pairs of DNA. Given that the distance between consecutive base pairs is nm, calculate the total length of DNA in a human cell.
2.2 m
0.34 m
6.6 m
0.22 m
If the length of DNA in a mammalian cell is about 2.2 meters and there are base pairs, what is the approximate distance between two consecutive base pairs?
0.34 nm
3.4 nm
34 nm
0.034 nm
