Chapter 12 Biol 1001
Newly replicated DNA strands contain (on average) one mistake for every how many base pairs?
100 million to 1 billion base pairs.
A strand of DNA is a polymer of nucleotides held together by hydrogen bonds. True or False?
FALSE
DNA helicase is involved in "rewinding" the strands of DNA back into a helix after replication. True or False
FALSE
In a DNA molecule, base pairing occurs between which two bases?
adenine and thymine
Regarding the structure of DNA, which joins sugar to phosphate?
covalent bonds
In the comparison of a DNA molecule to a twisted ladder, the uprights of the ladder are what?
deoxyribose linked to phosphate.
Watson and Crick are credited with the discovery and description of what characteristic of the DNA molecule?
double helix
How many DNA base pairs are in a typical gene?
hundreds or thousands
How many bases are in a DNA molecule?
millions or billions
A DNA nucleotide is made up of what components (in the correct sequence)?
phosphate-deoxyribose-nitrogen-base.
