Genetic Code and Nucleic Acids Flashcards
What is the genetic code ?
Sequence of base triplets in mRNA
code for a specific amino acids
How is the code non-overlapping?
Each base triplet is read in sequence
separate triplet before it and after it
How is genetic code degenerate?
More possible combinations of triplets than they are amio acids
amino acids code for more than one base triplet
What are start and stop signals?
Triplets tell cell when to start and stop
Beginning and end or mRNA
How is the genetic code universal?
Same specific base triplets code for the same amino acids in all living things
How to code for mRNA
DNA
tRNA
mRNA used to make amino acid - codons
from amino acid given DNA sequence
tRNA anticodon is complementary to mRNA
4 bases
what is the max number of triplets?
4^3
= 64
129 minimum amino acid
what is their minium bases?
129*3 = 387