UNIT 1.1 Flashcards
1
Q
components of DNA nucleotide
A
- phosphate
- backbone
- deoxyribose sugar
2
Q
backbone
A
sugar phosphate backbone
3
Q
four bases
A
Adenine - Thymine
Cytosine - Guanine
4
Q
bonds between bases are
A
hydrogen bonds that are weak
5
Q
what is the coiled structure adopted by DNA
A
double stranded helix
6
Q
locations of the 5’ and 3’
A
deoxyribose is at the 3’ end and phosphate at the 5’ end of each strand
7
Q
the two strands are aligned as
A
antiparallel
8
Q
eukaryotes
A
- have a membrane bound nucleus
- linear chromosomes in the nucleus
also have circular chromosomes in mitochondria and chloroplasts - the packaging DNA in linear chromosomes found in nucleus of eukaryote cells and associated histone proteins
9
Q
prokaryotes
A
- have no membrane bound nucleus
