Chap 12 + 13 Flashcards
0
Q
Structure of a nucleotide
A
- 5Carbon Sugar
- Phosperate group
- Nitrogenous bases
1
Q
The role of DNA
A
Store, transmit, copy genetic info
2
Q
Nitrogenous bases?
what base is added in RNA and which base is its replacement?
A
-Adinine
-Cytosine
-Guanine
Thymine is replaced with Uracil in RNA
3
Q
DNA Structure?
A
- Deoxiribonucleic acid
- Double Helix shape
- Long chain of repeating units called nucliotides
4
Q
Chargoffs rule
A
In DNA the amount of A=T and C=G
5
Q
What does the DNA contain?
A
Contains code
6
Q
What does the code contain?
A
contains instructions for building protiens.
7
Q
What is DNA replication?
A
The proses by which a cell makes EXACT copies of all DNA.
8
Q
Where does DNA replication occur?
A
Nucleus
9
Q
How is DNA replication controled?
A
Enzymes
10
Q
What do the enzymes do?
A
- Unzip DNA
- enzyme DNA polymerase attaches to dna strand
- Build the complementary strand
11
Q
Transcription?
A
converts DNA code into mRNA code
12
Q
RNA?
A
- Ribonucleic acid
- single strand
- long chain of nucleotides
13
Q
Where are protiens made?
A
Ribosome(protien factory)
14
Q
Translation?
A
Converts mRNA code into amino acid sequence
-Takes place in Ribosome
