U2 bio quiz 1 Flashcards
DNA,chromosomes,cells stuff
1
Q
how many nucleiotides are DNA made up of
A
4
2
Q
true or false - A matches with T, and C matches with G
A
true
3
Q
what does the A base stand for?
A
adenine
4
Q
what does the T base stand for
A
thiamine
5
Q
what does the C base stand for
A
cytosine
6
Q
what does the G base stand for
A
guanine
7
Q
what are chromosomes
A
extremely long DNA molecules
8
Q
cell
A
has a nucleus that stores genetic info
9
Q
nucleus
A
stores genetic info
10
Q
genes
A
long stretches of DNA molecules
11
Q
gene regions
A
sections of a gene that have different functions
12
Q
why do DNA have weak hydrogen bonds
A
strands break off during replication
13
Q
what 2 things are on the outside of a drawing of dna
A
phosphate and deoxyribose sugar
14
Q
what letters are in protein?
A
CHNO
15
Q
what letters are in nucleic acid?
A
CHNOP
