(ii) Under electric field, DNA migrates from positive electrode to negative electrode.
(iii) If separates DNA by size.
(iv) Ethidium bromide is usually used to visualize DNA in gels.

A:-(iv) only

B:-(ii) only

C:-all above

D:-(iii) only

Correct Answer:- Option-B

Question10:-Visualization at the nanoscale can be achieved by
(i) Scanning Tunneling Microscopy

(ii) Atomic Force Microscopy

(iii) Nomarsky microscopy

(iv) All the above

A:-(iv)
B:-(ii) and (iii)
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D:-(i) and (ii)
Correct Answer:- Option-D
Question11:-Monomers of Lactose are
A:-Two glucose molecules
B:-One glucose and one fructose
C:-One galactose and one glucose
D:-Two galactose molecules
Correct Answer:- Option-C
Question12:-Which are the three aminoacids with aromatic side chains?
A:-Valine, Leucine, Isoleucine
B:-Lysine, Arginine, Histidine
C:-Phynylalanine, Threonine, Tryphtophan
D:-Phynylalanine, Tyrosine, Tryphtophan
Correct Answer:- Option-D
Question13:-Select the incorrect statement about «-helix from the following
42-11 was discovered by Linus Pauling in 1951
B:-e-helix is left handed

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e-helix has 3.6 residues per turn

D:-a-helix have an average length of ~12 residues
Correct Answer:- Option-B

Question14:- lipids are involved in the production of pain and fever.