Molecular genetics Flashcards
1
Q
nucleoside
A
no phosphates
2
Q
nucleotide
A
have phosphates
3
Q
Which are bigger, Purines or Pyramidines?
A
Purines
4
Q
Which bond is stronger, AT or GC?
A
GC
5
Q
Which bases are purines?
A
A and G
6
Q
Which bases are pyramidines
A
T and C
7
Q
DNA
A
Anti-parallel, Phosphodiester bonds hold each strand together, H-Bonds hold the pairs together, Bases are hydrophobic (base stacking)
8
Q
Chromosome organization in prokaryotes
A
1 circular double stranded chromosome, cytoplasm, no telomere
9
Q
Chromosome organization in eukaryotes
A
single line, 23 sets of chromosomes, a lot of DNA, big genome. Chromosomes are wrapped around histones (compact), in the nucleus, centromeres and telomeres
10
Q
What is centromere
A
what the spindle fibers attach to during cell division
11
Q
what is a telomere?
A
the end of the chromosome
