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Modern Genetics
Review
18
Biology
9th Grade
01/20/2012

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Cards

Term
Primase
Definition
enzyme where primer attaches to to start replication
Term
tRNA
Definition
transfers RNA to ribosome; has an anticodon region that reads RNA;has anticodon to match up to mRNA
Term
codon
Definition
3 nucleotides or 1 amino acid
Term
HOX genes
Definition
genes that regulate and control differentiation of cells; turn on/off genes
Term
transcription factors
Definition
proteins that modify rate of production
Term
inducer
Definition
DNA segment that turns on gene by removing repressor
Term
plasmids
Definition
mini chromosomes in prokaryotes
Term
restriction enzyme(bacterial)
Definition
cut DNA in a specific sequence
Term
hydrogen bond
Definition
holds 2 strands of DNA together
Term
Central Dogma
Definition
replication, translation, transcription
Term
mRNA
Definition
carries genetic code from nucleus to cytoplasm; involved in transcription
Term
rRNA
Definition
reads mRNA
Term
ribosomes are made of..
Definition
rRNA and proteins
Term
histones
Definition
WhereEukaryotic DNA is wrapped around
Term
introns
Definition
segments trashed
Term
extrons
Definition
segments kept
Term
structural gene
Definition
a gene that codes for any RNA or protein product other than a regulatory factor
Term
RNA
Definition
sends messages from nucleus to ribosome
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