Intro To DNA Flashcards
Structure
Three carbon phosphate group phosphate sugar and nitrogenous base
Thymine
Adenine
C and G
DNA
DNA is a type of macromolecule made out of nucleic acid’s
Info stored in base pairs
Info used to build proteins
How do base pairs stay together
Hydrogen bonds
Purines
2 rings G/A
Pyramidines
1 ring
C/t and u
Semi conservative
To parental strands service templates each new strand has one parent and one copy
DNA replication
Helicase unzips the double helix
DNA polymerase links corresponding nucleotide starting from the five prime into the three prime
Lagging vs leading
DNA polymerase can only work from 5 prime to 3 prime so replaces the leading strand continuously but the lagging strand discontinuously
short Okazaki fragments are formed and they are later synthesized by DNA ligase
Anti Parallel
Parallel but chemically different directions
five prime and is phosphate three prime end is sugar