3 Flashcards
What are the four bases which make up the genetic code?
Adenine, cytosine, guanine and thymine (A, C, G and T)
What is A always paired with?
A is always paired with T
What is C always paired with?
C is always paired with G
What does the base sequence determine?
The base sequence determines amino acid sequence in proteins
What is a gene?
A gene is a section of DNA which codes for a protein
What does DNA carry?
DNA carries the genetic information for making proteins
What is in the structure of DNA?
Double-stranded helix held by complementary base pairs
What is messenger RNA?
Messenger RNA (mRNA) is a molecule which carries a complementary copy of the genetic code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from the amino acids