Unit 1.3 DNA and the production of proteins Flashcards
What is the structure of DNA
DNA is a double-stranded helix. It has two backbones which are held together by complementary base pairs
What does DNA do
DNA carries the genetic information for making proteins
What are the bases in DNA
Adenine - Thymine
Cytosine - Guanine
What do the four bases in DNA make up
The genetic code
What does the order of bases in DNA determine
The order of bases in DNA determines the sequence of amino acids in proteins
What is a gene
A gene is a section of DNA which codes for a protein
What is Messenger RNA (mRNA)
Messenger RNA is a molecule which carries a complementary copy of the genetic code from the DNA in the nucleus to a ribosome in the cytoplasm. Where a protein is assembled from amino acids