4.4 Flashcards
(16 cards)
1
Q
Up to how many amino acids can be made
A
64
2
Q
what is a codon
A
3 bases of RNA codes for 1 amino acid
3
Q
DNA -> ? -> Amino acid
A
mRNA
4
Q
what does tRNA do
A
transfers amino acid from cytoplasm to ribosome
5
Q
u matches with what DNA base
A
A
6
Q
what is the start codon
A
methionine, AUG
7
Q
is tRNA the same as mRNA or DNA
A
DNA
8
Q
what does the A site do
A
matches incoming tRNA to codon in mRNA
9
Q
what does the P site do
A
holds growing polypeptide chain
10
Q
what does E site do
A
empty tRNA leaves ribosome
11
Q
What causes mutation
A
Bad DNA replication, radiation, viral infection
12
Q
are all mutations harmful
A
no some are silenty
13
Q
difference between missense and nonsens
A
missense=wrong base, nonsense=prematurely stopped
14
Q
Frameshift `
A
insertion/deletion
15
Q
insertion
A
added base
16
Q
A
