DNA Flashcards
1
Q
What is DNA
A
strands of polymers, made up of repeating units called nucleotides.
2
Q
What do all nucleotides contain?
A
contain a sugar,a phosphate group, and one base
3
Q
What are the letters of the bases?
A
A,T,C,G
4
Q
What do DNA molecules contain?
A
2 strands coiled together, shaped like a double helix.
5
Q
What base does A link to ?
A
A —>T
6
Q
What bases does C link to ?
A
C—>G
7
Q
What are complementary bases held together by?
A
held together by weak hydrogen bonds.
8
Q
What are chromosomes?
A
long, coiled up molecules of DNA, found in the nucleus.
9
Q
What is a gene?
A
section of DNA on a chromosome that codes for a paticular protein.
