DNA Flashcards
What does the nucleus contain?
Chromosomes
What are chromosomes?
Strands of DNA
What are genes?
Sections of DNA molecules that determine the sequence of amino acids that make up the different types of proteins produced in cells
What is DNA?
DNA is made up of two long chains of sugar and phosphate molecules connected by bases
What is the structure of DNA?
It is twisted to form a double helix
What are the four bases?
Adenine (A), Thymine (T), Cytosine (C) and Guanine (G)
What are the complimentary base pairings?
Adenine (A) and Thymine (T)
Cytosine (C) and Guanine (G)
How does DNA work?
Every 3 bases form a triplet code
This code determines the order in which different amino acids are linked to form different proteins during protein synthesis
When was DNA discovered?
1953
Which two scientists were credited with the discovery?
Francis Crick and James Watson