DNA is made up of ……..types of deoxyribonucleotides.
a) two
b) three
c) four
d) five
Explanation: Adenine deoxyribonucleotide, Guanine deoxyribonucleotide, Thymine deoxyribonucleotide and Cytosine deoxyribonucleotide
According to Watson and Crick model of DNA, which of the following pairing is/are INCORRECT?
a) Adenine with Guanine
b) Guanine with Thymine
c) Thymine with Cytosine
d) all of these
Explanation: Adenine always pairs with Thymine and Guanine with Cytosine
What is the diameter of DNA molecule?
a) 2µm
b) 0.34µm
c) 2nm
d) 0.34 nm
According to Watson and Crick model of DNA, what is the distance between base pairs?
a) 2µm
b) 0.34µm
c) 2nm
d) 0.34 nm
In a DNA molecule, there are 15% Adenine deoxyribonucleotides. What will be the percentage of Cytosine deoxyribonucleotides?
a) 15%
b) 30%
c) 35%
d) 70%
Explanation: 15(A)+15(T)+35(G)+35(C)=100
In a DNA molecule, there are 20% Cytosine deoxyribonucleotides. What will be the percentage of Thymine deoxyribonucleotides?
a) 15%
b) 30%
c) 35%
d) 70%
Explanation: 20(C)+20(G)+30(A)+30(T)=100
