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chap 12 dna
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33
Biology
Pre-School
12/24/2010

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Term
transformation
Definition
makeing one strand of dna go from good to bad
Term
bacteriophage
Definition
eats bacteriophia
Term
nucleotides
Definition
what dna is made of
Term
base pairing (chargoff's rule)
Definition
a-t, c-g
Term
chromatin
Definition
dna and protines packed tightly toghter.
Term
histones
Definition
chromatin packed tightly toghter.
Term
dna polymerase
Definition
principle enzyme involved in dna replocation.
Term
genes
Definition
coded dna
Term
messenger rna (mrna)
Definition
copies assembling instructions for amino acids to protines.
Term
ribosomal rna
Definition
Forms the Ribosomal structure which attaches the mRNA.
Term
transfer rna
Definition
carries the amino acids to mrna.
Term
transcripton
Definition
sequence of a dna into complementry strand of rna
Term
rna polymerese
Definition
the rna part of a ribosome
Term
promoters
Definition
where enzymes will only bind to.
Term
introns
Definition
contains sequences of nuclotides
Term
exons
Definition
code for protines
Term
codon
Definition
3 consecutive nucleotides that specify a single amino acid.
Term
translation
Definition
the decoding of mrna
Term
anticodon
Definition
complementry to one mrna
Term
mutations
Definition
mistakes made copying dna
Term
point mutation
Definition
mutation changinging at a single point
Term
frameshift mutaiton
Definition
changes the reading frame of the genitic mesage.
Term
polypeptide
Definition
when organisms have a extra set of chromasomes
Term
operon
Definition
a group of genes that operate togehter
Term
differention
Definition
cells become spelized in structure
Term
hox genes
Definition
controls differentiation of the cells
Term
operator
Definition
makes copies of what the promoter does.
Term
restriction enzymes
Definition
cuts dna at a specific point.
Term
gel electrophoresis
Definition
what dna is read in.
Term
recombent dna
Definition
combining dna by diffrent sources.
Term
griffith's experiment
Definition
found transformation
Term
avery
Definition
dna stores genitic material.
Term
watson and crick
Definition
discovrd that dna is in the shape of a double helix
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