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16 Cards in this Set

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What is decatenation
the separation of chromosomes
what structure do we observe as an intermediate with circular chromosome replication
a "theta" structure
What is segregation
the partitioning of chromosomes into daughter cells
With ____ DNa we see the rolling cirlce model of DNA replication
plasmid
what is a plasmid
1)it is smaller than a chromosome
2)DNA
3)Autonomus replication
what is autonomus replication
plasmid replication is independent of the controls over chromosome replication
What is meant by fidelity of DNA relication
DNa polymerase activity shows high fidelity as it copies the parent strand into daughter cells. (The error rate is low.) 1 mistake in every billion bases it puts in
Speed of replication
about 1000 bases/second
What is a gene?
A strand of DNA that encodes an RNA molecule.
What does a RNA molecule encode?
Protein, tRNA, rRNA
What is a promotor
the sites where RNA polymerase binds.
There are __ amino acids
20
There are __ codons
64, this means more than one codon can code for an A.A
What are the stop codons?
UAA, UAG, UGA
What is an open reading frame?
A series of codons that encode information for a protein.
what encodes a polypeptide or a protein
An ORF