Week2) Nucleic acids Jove videos Flashcards
1
Q
Nucleic acids
A
polymers of nucleotides – molecules composed of a pentose sugar, a nitrogen-containing base, and a phosphate group.
2
Q
two types of nucleic acids
A
deoxyribonucleic acid, DNA, and ribonucleic acid, RNA.
3
Q
chemical structures differ depending on
A
which pentose sugar and nitrogenous bases they contain.
4
Q
pentose sugar in RNA is
A
Ribose
has a hydroxyl group attached to carbon-2.
5
Q
The sugar in DNA is
A
deoxyribose, which has only a hydrogen atom but no oxygen at carbon-2.
6
Q
nitrogenous base is bonded to
A
carbon-1 and the phosphate at carbon-5
7
Q
RNA and DNA contain the base
A
adenine, cytosine, and guanine; but DNA has thymine, while RNA has uracil.
8
Q
In DNA and RNA, guanine and cytosine form complementary base pairs, linked by
A
three hydrogen bonds.
9
Q
A
