Lecture 15- the genetic code Flashcards
1
Q
The genetic code is …., ….. and ….
A
Non-overlapping
degenerate
triplet code
2
Q
Insertions and deletions are known as ….. mutations
A
frameshift
3
Q
Each tRNA contains an ….. complementary to mRNA codon
A
anticodon
4
Q
What dies degenerate mean?
A
Various combinations of codons lead to the same amino acid
5
Q
tRNA are arranged into a …. structure
A
cloverleaf
6
Q
The correct amino acid is selected of covalent attachment to the correct tRNA by ……
A
amnioacyl-tRNA synthetase
7
Q
Aminoacylation is catalysed by 1 enzyme in 2 steps…
A
-The amino acid is activated to form aminoacyl-adenylate
-The amnoacyl-AMP reads with tRNA to form aa-tRNA
8
Q
….. contracts the tRNA in the acceptor stem & anticodon loop
A
Synthetase
