DNA Replication Flashcards
(43 cards)
Define anti parallel
strands the are opposite but next to each other
how is the leading strand started
3’
how is the new strand written for the leading strand
5’—>3’
What kind of replication is happening with the leading strand?
continuous
What is the helicase
protein that unwinds and separates DNA
What is the primase
protein that creates RNA primer
What is DNA polymerse III
lays down new strand
What is DNA polymerse I
replaces primer with DNA
What kind of replication happens with the lagging strand
discontinuous
In the lagging strand, what does Polymerse III do
lays down okazaki fragments
In the lagging strand, what does Polymerse I do
replaces primer with DNA
What does a ligase do
attaches fragments to the lagging strand of DNA
What are the two steps of DNA to protein
Transcription and Translation
What happens during RNA synthesis
RNA copies DNA
What replaces Thymine during RNA synthesis
Uracil
What happens during protein synthesis
RNA is read to put amino acid together
What are the three parts to each gene
promoter region, body, and termination signal
what is the promoter region
where RNA polymerse binds
what is the body in a gene
begins with the start codon
what is the termination signal in a gene
stop codon and signal for polyerse to detach
What is the machinery
transcription factors and RNA polymerase
what are transcription factors
recognize promotor region and signal polymerse to bind
what is the RNA polymerse
Pulls DNA strands apart and creates RNA strand from DNA template strand
What are the three steps to transcription
Initiation, elongation, and termination