Chapter 11 Flashcards
1
Q
structure of DNA backbone
A
double helix
2
Q
structure of a nucleotide
A
A ring-shaped sugar called deoxyribose
A phosphate group
A nitrogenous base
3
Q
nucleotide
A
building block (monomer) of nucleic acid polymers
4
Q
structure of double helix
A
- sugar-phosphate backbones on the outside
- nitrogenous bases on the inside
- nitrogenous bases that aligned across the two strands formed hydrogen bonds
5
Q
complementary pairing
A
thymine- adenine
guanine- cytosine
6
Q
DNA replication
A
process of copying DNA molecules
7
Q
The Template Mechanism
A
- genetic instructions pass from one generation to the next
- copying the instructions
- works like the negative and photograph
8
Q
DNA polymerase
A
enzyme that makes the covalent bonds between the nucleotides of new DNA strands
