Biological Molecules: Nucleic Acid Flashcards
1
Q
Nucleic acids have several purposes …
A
- Genetic information
- Info for protein synthesis
- Capable of being copied exactly
2
Q
DNA and RNA are …
A
Polynucleotides
3
Q
A nucleotide is made from …
A
- 1 pentose sugar
- 1 phosphate
- 1 nitrogenous base
4
Q
DNA facts …
A
- Double stranded molecule in a double helix
- Deoxyribose is the pentose sugar
- Nitrogenous bases are A,T,C,G
5
Q
RNA facts …
A
- Single stranded molecule
- Ribose is the pentose sugar
- Nitrogenous bases are A,U,C,G
6
Q
What are the names for the nitrogenous bases: A T U C G
A
Adenine Thymine Uracil Cytosine Guanine
7
Q
The polynucleotides are joined together at which OH and with which bond?
A
The 3rd carbon OH and 5th carbon OH
with a phosphodiester bond.
8
Q
The polynucleotide backbone’s pattern is …
A
Phosphate ribose phosphate ribose
9
Q
The bases create a …
A
sequence of genetic information
10
Q
Bases are held to each other with …
A
Hydrogen bonds
11
Q
The bases are paired with …
A -
C-
U-
A
- T
- G
- T
12
Q
Purines A, G have a double
where as Pyrimidines don’t.
A
Carbon ring
13
Q
The strands in DNA are placed …
And are found primarily …
A
Anti-parralel
In the nucleus
14
Q
RNA are molecules are
- _____ stranded
- Short sections of DNA corresponding to and individual ______
- Formed by a ______ reaction
- mRNA is broken down by _____ reaction
A
- Single
- Gene
- Condensation
- Hydrolysis
15
Q
RNA are found primarily …
A
in the Mitochondria and cytoplasm
