MCQ
Which given statements are correct about DNA (model-B) ?
(i) Adenine forms three hydrogen bonds with Thymine from opposite strand and vice-versa.
(ii) Guanine is bonded with Cytosine with two H-bonds.
(iii) The two chains are coiled in a right-handed fashion.
(iv) The pitch of the helix is 3.4 nm and there are roughly 10 bp in each turn.
(v) Distance between a bp in a helix is approximately equal to 0.34 nm.
(vi) Francis Crick proposed the Central dogma in molecular biology, which states that the genetic information flows from DNA $\rightarrow$ RNA $\rightarrow$ Protein.
(vii) In some viruses the flow of information is from RNA to DNA.
(i) Adenine forms three hydrogen bonds with Thymine from opposite strand and vice-versa.
(ii) Guanine is bonded with Cytosine with two H-bonds.
(iii) The two chains are coiled in a right-handed fashion.
(iv) The pitch of the helix is 3.4 nm and there are roughly 10 bp in each turn.
(v) Distance between a bp in a helix is approximately equal to 0.34 nm.
(vi) Francis Crick proposed the Central dogma in molecular biology, which states that the genetic information flows from DNA $\rightarrow$ RNA $\rightarrow$ Protein.
(vii) In some viruses the flow of information is from RNA to DNA.
- A(i), (ii), (vi) and (vii)
- B(iv), (v), (vi) and (vii)
- ✓(iii), (iv), (v), (vi) and (vii)
- DAll are correct