Book 3 - DNA and the production of proteins Flashcards
1
Q
Where are chromosomes found
A
In the nuclei of living cells
2
Q
What is a section of DNA called
A
A gene
3
Q
What shape does DNA exist as
A
A double stranded helix
4
Q
What are the two strands of DNA held together by
A
Complementary bases
5
Q
What are the four different types of bases in DNA
A
Adenine, Thymine, Cytosine, Guanine
6
Q
What are the complementary base pairs
A
Adenine and Thymine
Cytosine and Guanine
7
Q
What is a gene
A
A section of DNA which codes for a protein
8
Q
Subunits of a protein
A
Amino acids
9
Q
The chemical bonds that join amino acids into a protein
A
Peptide bonds
10
Q
Site of mRNA synthesis in a cell
A
Nucleus
11
Q
The role of mRNA in protein synthesis
A
Carries a copy of complementary order of bases from the DNA
