gene expresssion Flashcards
1
Q
what is gene expression
A
the process where genes are activated to produce a required protein
2
Q
why are genes expressed
A
to produce proteins
3
Q
what is transcription
A
the copying of DNA sequences to make a primary transcript
4
Q
what is translation
A
the production of a polypeptide at a ribosome using information encoded in mRNA
5
Q
what does gene expression involve
A
transcription and translation
6
Q
the three types of Rna
A
Mrna Trna rRNA
7
Q
what is RNA
A
It is single stranded
composed of nucletoides
contains ribose sugar phosphate
one of the four bases U
8
Q
what is Mrna
A
Carries a copy of the DNA code from the nucleus to the ribosome
9
Q
what is each triplet bases on the MRNA molecule called
A
A codon
