bellringer 12.2 biology Flashcards
1
Q
the two sides of the double helix of DNA stay joined together by the ______pairs.
A
base
2
Q
the supporting structure (the rails) of a DNA ladder are made up of deoxyribose sugar and_______ molecules and the base pairs makeup the rungs.
A
phosphate
3
Q
the _________enzyme in the replication process unzips the DNA double helix.
A
helicase
4
Q
during replication DNA polymerase bonds new _________ to the parent strand forming a new double helix.
A
nucleotides
5
Q
the paired bases in DNA nucleotides are Guanine (G) pairs with _________ and Adenine (A) pairs with_________.
A
cytosine, thymine
6
Q
histones are proteins which DNA strands coil tightly________to be able to fit inside a cell.
A
around
