DNA and RNA Flashcards
1
Q
whats the role of DNA?
A
to store genetic information
2
Q
whats the role of RNA?
A
transfer genetic information
3
Q
DNA and RNA are —— of nucleotides
A
polymers
4
Q
whats a nucleotide?
A
the monomers that make up DNA and RNA
5
Q
describe the structure of a nucleotide
A
- a pentose sugar
- nitrogen- containing organic base
- phosphate group
6
Q
Describe the structure of DNA
A
- deoxyribose sugar
- phosphate group
- A,T,C or G base
7
Q
describe the structure of RNA
A
- ribose sugar
- phospahte group
- A, U, C or G base
8
Q
How many hydrogen bonds form between A and T?
A
Two
9
Q
How many hydrogen bonds form between C and G?
A
Three
10
Q
What bonds form when DNA and RNA molecules form a polynucleotide?
A
- phosphodiester bonds
11
Q
What does a phosphodiester bond consist of?
A
One phosphate group and two ester bonds
