Exam 3.2 Flashcards
Describe RNA
stores info for polypeptide
what is a 5 prime end made up of
phosphate
what is 3 prime end made up of
hydroxl
what is similar in bacteria and eukaryotes
gene expression
where does transcription take place?
nucleus
where does RNA processing take place?
nucleus
where does translation take place?
cytoplasm
is all DNA part of part of a gene?
no
define mRNA
gene that codes as a protein
what does m stand fro in mRNA?
messenger
define codon
has the code for one amino acid in a protein
how many amino acids does one codon code for?
4
how many possibilities can a full codon code for?
64
how many amino acids are there
20
how many stop codons are there?
3
define a redundant/degenerate codon
there are synonyms in the code
AUG is a codon that specifies the amino acid
thymine
thymine is a what?
start codon
what does every polypeptide chain begin with?
AUG
what are the three major phases of gene expression in eukaryotes?
transcription, rna processing, translation