Nucleotides Flashcards
1
Q
Nucleotides
A
Building Block of DNA
2
Q
Components of Nucleotides
A
- A Phosphate group
- A five Carbon Sugar
- A nitrogenous ( Nitrogen containing) Base
3
Q
2 type of sugars
A
Deoxyribose
Ribose
4
Q
Deoxyribose
A
- Lacking Oxygen ( In DNA)
5
Q
Ribose
A
- Has OH group bonded to the 2 carbon ( in RNA)
OH- Oxygen and Hydrogen
6
Q
Why do the 5 Carbon sugar in DNA and RNA differ?
A
They differ due to DNA lacking Oxygen while RNA has both OH
7
Q
When nucleotide join together what group from one nucleotide joins with another?
A
- When nucleotides join together 3 prime OH groups from one nucleotide join with the 5 prime phosphate of the next nucleotide.
- The chain always grows at the 3 prime end
8
Q
5 prime contains
A
Phosphate group
9
Q
3 Prime contains
A
OH (Hydroxyl group)
10
Q
Where does the chain always grow from
A
3 Prime side
11
Q
How many hydrogen bonds does adenine from with Thymine (A-T)
A
Two hyrdogen bonds
12
Q
How many hydrogen bonds does Guanine form with Cytosise (G-C)
A
3 Hydrogen bonds
13
Q
What do purines bind to
A
Pyrimidines
14
Q
Chromatin
A
A string of nucleosomes
