Denaturation of double stranded DNA results in :
a) It gets broken down to nucleotides.
b) It becomes single stranded reversibly
c) It becomes single stranded irreversibly
d) becomes double stranded permanently
Ans : B
All the structures are preserved in radical neck surgery except
a) Carotid arteries
b) Cranial nerves 7,9,10
c) Phrenic nerve
d) Accessory nerve.
Ans : D
