DNA Replication
Number of origins of replication in eukaryotes
More than 1
The enzyme that makes an RNA copy of the template strand of the DNA
RNA polymerase
The ribosome scans the mRNA by moving in this direction along the mRNA.
5′ to 3′
a genetic alteration that occurs at a single point in the DNA sequence, involving the substitution, insertion, or deletion of a single base pair
point mutation
removes RNA primers
DNA polymerase I
Enzyme responsible for breaking the H bonds between nitrogenous bases.
Helicase
Elongation occurs in this direction
5' to 3'
The ribosomal subunit that binds the mRNA
alters a base, but does not change the amino acid, and has no effect
silent
holds the 2 strands of DNA apart
single stranded binding proteins
region of repetitive DNA sequences at the end of a linear chromosome
telomeres
nucleus
These types of bonds are formed between amino acids.
peptide
changes a normal mutation into a stop codon
nonsense
type of bond that hold nucleotides together
phosphodiester
This strand is synthesized away from the replication fork.
Lagging strand
removal of introns
splicing
This type of RNA serves as a link (or adaptor) between the mRNA molecule and the growing chain of amino acids that make up a protein.
tRNA
mutation results in a change of amino acid
missense
type of bond that links nitrogenous bases together
Hydrogen
RNA primer
causes prokaryotic transcription to stop
hairpin loop
Group of three nucleotides that dictates which amino acid is added to the growing peptide chain
Codon
One or more bases are inserted or deleted; Changes the reading frame of the mRNA
frameshift
the process by which a DNA double helix is copied, resulting in two daughter DNA molecules, each containing one original (parental) strand and one newly synthesized strand
semiconservative replication