DNA & Replication Flashcards
What are nucleotides made up of?
A pentose sugar,a nitrogenous base, and a phosphate group
What are DNA and RNA examples of?
Polymers
What are the bases in DNA?
A T C G
What are the bases in RNA?
A U G C
What is the sugar in DNA?
Deoxyribose
What is the sugar in RNA?
Ribose
What reaction makes nucleotides join together?
Condensation
What bond is between the sugar and the phosphate?
Phosphodiester bond
What are the polynucleotide strands joined by?
Hydrogen bonds.
What is the difference between DNA and RNA?
DNA is double stranded and RNA is single stranded
DNA has the base T and RNA has the base U
DNAs relative length is long and RNAs relative length is short.
What are A-T and C-G?
Complementary base pairs
What does more C-G pairing do?
Gives more stability
What is this first phase of semi conservative DNA replication?
Helicase breaks this hydrogen bonds between complementary base pairs and the double helix unwinds
