structure of DNA Flashcards
1
Q
what substance is DNA packaged in eurokayotes?
A
proteins/histones
2
Q
what is a nucleotide made up of?
A
phosphate, base, deoxyribose sugar
3
Q
what is meant by the sugar-phosphate backbone?
A
basic units are linked together to form strong bonds between the deoxyribose sugar of the nucleotide and the phosphate of the next nucleotide
4
Q
which end does the 3’ and 5’ end go?
A
3’ deoxyribose sugar end and the 5’ the phosphate end
5
Q
how is DNA arranged in prokaryotes? (bacteria)
A
circular chromosomes and circular plasmids
6
Q
how is DNA arranged in eukaryotes? (plant, animal and yeast)
A
linear chromosomes and contain circular chromosomes in their mitochondria and chloroplasts. plasmids only in yeast cells
