Chapter 9 Flashcards
A stands for
Adenine
T stands for
Thymine
G stands for
Guanine
C stands for
Cytosine
What is a nucleotide?
a single building block of DNA
what is in a nucleotide?
one deoxyribose sugar, one phosphate group, one nitrogeneous base
What are the purines
A and G
what are the pyrimidines?
C and T
What describes the opposing directions of the two nucleotide chains of DNA in a double helix?
Antiparrallelism
A and T, C and G are
Complementary base pairs
DNA replication is referred to as
Semiconservative
This unwinds the double helix
Helicase
This comes in after the Helicase and stabilizes the two strands - keeps DNA open
Binding proteins
this adds a RNA primer to the template strand - tells DNA polymerase where to start building
Primase
This is what builds the nucleotides
DNA Polymerase