DNA/RNA Structure
What are the base pairing rules in DNA replication?
A(adenine) pairs with T(thymine) and C(cytosine) pairs with G(guanine)
How many strands of DNA are there?
There are two strands
What does transcription produce?
mRNA!
Where does translation occur?
ribosome
What sugar phosphate is in RNA?
Ribose sugar
What is the result of DNA replication?
-two daughter DNA molecules with one old and one new strand of nucleotides (semi-conservative)
Where does transcription occur?
In the nucleus
What is a codon?
A codon is a sequence of three RNA nucleotides that corresponds with a specific amino acid.
What is the full name of DNA?
Deoxyribonucleic Acid
When does DNA replication take place?
During the synthesis phase of the cell cycle! (before cell division)
What are the three classes of RNA?
mRNA(messenger), tRNA(transfer), and rRNA(ribosomal)
What takes place at the P site of a ribosome?
The binding site for tRNA in the ribosome.
What are the three components of a nucleotide?
A phosphate group, nitrogenous base, and a sugar
What is the purpose of DNA replication?
To make an exact copy of DNA
Which way does the RNA polymerase read the template strand?
Synthesizes in the 3' to 5' direction.
What is the result of translation?
Results in a chain of polypeptides (a protein)
What are Adenine and Guanine known as?
Purines
What is the unwinding protein called?
Helicase
What occurs during the termination stage of transcription?
The RNA polymerase reaches the terminator sequence of base pairs and it completes the production of the pre-mRNA and releases it into the nucleoplasm.
What is the Wobble position?
It is the third nucleotide in a codon, it allows some flexibility. Which allows the mRNA to be translated by fewer tRNA's.