Nucleotides And Neucleic Acids Flashcards
1
Q
Which two nucleotides can be methylated in bacterial DNA?
A
C and A (GATC sequences)
2
Q
Double helix structure of DNA, parallel or anti-parallel?
A
Anti-parallel
3
Q
What stabilizes the double helix?
A
Base stacking between adjacent bases
4
Q
Inverted (palindromic) repeats are important for what?
A
DNA protein interaction, and hairpin formation in RNA
5
Q
Which DNA absorbs more UV-light, single or double stranded?
A
Single stranded
6
Q
What is the main nucleotide that is methylated in eukaryotic DNA and why is that important?
A
C in CpG sequences, important because they are mutation hotspots
