molecular genetics Flashcards
what are the evidences of DNA
bacterial transformation and bacteriophage
what are the results of the evidences DNA
DNA holds our genetic information
Purine
In DNA, double ring, A=G
Pyrimidine
In DNA, single ring, T=C
Base pairing rule
A=T and G=C
What are the base pairs bonded with
Hydrogen bonds
What does the H bonds maintain
helix shape
DNA duplication
exact copy of DNA
How does a molecule act as a genetic material
1- make a copy of itself
2-carry a code - semi conservative
semiconservative
have the same nucleotide
What are the steps for replication
1-helicase unwinds the helices and breaks down the H bonds and separates the two strands
2-Each strand acts as a template to form its complementary one
3-DNA polymerase joins the new nucleotides together to form a new strand
gene expression
protein synthesis
1 gene
1 proton
how many nucleotides for amino acid
3 nucleotides
a base sequence of DNA
amino acid
