Nucleotide bases and aromatic amino acids absorb light respectively at 260 and 270 nm 260 and 280 nm 280 and 260 nm 270 and 280 nm TRUE ANSWER : ? YOUR ANSWER : ?
Because DNA is a highly charged polyanion, its stability to heat denaturation is independent of G - C content does not depend on hydrophobic interactions increases with increasing salt decreases with increasing salt TRUE ANSWER : ? YOUR ANSWER : ?
A five carbon sugar lacking a hydrogen at the number 2 carbon is found in DNA mRNA rDNA RNA TRUE ANSWER : ? YOUR ANSWER : ?
Which pyrimidine base contains an amino group at carbon 4? Cytosine Thymine Adenine Uracil TRUE ANSWER : ? YOUR ANSWER : ?
A purine with an amine (NH2) group on the 6th carbon is thymine guanine cytosine adenine TRUE ANSWER : ? YOUR ANSWER : ?
Nucleoside is a pyrimidine or purine base hydrogen bonded to a sugar ionically bonded to a sugar None of these covalently bonded to a sugar TRUE ANSWER : ? YOUR ANSWER : ?
Nucleic acids can be analyzed experimentally by their molecular weight none of these absorption of uv light absorption of visible light TRUE ANSWER : ? YOUR ANSWER : ?
Thymidine normally forms two hydrogen bonds with adenosine is replaced by uracil in RNA can participate in hydrophobic interactions due to its methyl group All of these TRUE ANSWER : ? YOUR ANSWER : ?
A nucleotide consists of paired bases a sugar and a phosphate a sugar, a base and three phosphates a sugar, a base and a phosphate TRUE ANSWER : ? YOUR ANSWER : ?