4.1 study guide Flashcards
1
Q
A=
A
T
2
Q
C=
A
G
3
Q
Why does a virus infect genetic material into a host cell?
A
This is how viruses reproduce.
4
Q
parts of a nucleotide
A
phosphate, sugar, nitrogenous base
5
Q
Pyrimidine
A
1 ring
6
Q
Purine
A
2 rings
7
Q
what type of bond holds the nucleotides together to create the sugar/phosphate backbone?
A
hydrogen bonds
8
Q
what type of bond connects the base pairs to hold the two strands together?
A
covalent bonds
9
Q
Which binds is weaker?
A
Hydrogen bonds, they break first
10
Q
the strands in a DNA molecule are
A
antiparallel
