How can we help?

You can also find more resources in our Help Center.

18 terms

Ch. 7.....5 steps to a 5

Molecular genetics
STUDY
PLAY
frameshift mutation
deletion or addition of nucleotides; shifts reading frame
missense mutation
substitution of wrong nucleotide into DNA; still prodices a protein
nonsense mutation
susbstitution of wrong nucleotide into DNA that produces an early stop codon
transcription
process by which mRNA is synthesixes on a SNA template
RNA processing
introls are spliced out, exons are glued together, 3' poly-A tail, 5' G cap
translation
process by which the mRNA specified squence of aminos acids are lined up on a ribosome for protein synthesis
codon
triple of nucleotides that codes for a particular amino acid
promoter
base sequence that signals start site for transcription
repressor
protein that prevents the binding of RNA ploymerase to promoter site
inducer
molecule that binds to and inactivates a repressor
operator
shorter sequence near the promoter that assists in transcription by interacting with transcription on; when absent, it is off
operon
on/off switch for transcroption
lytic cycle
the virus is actively reproducing and kills the host cell
lysogenic cycle
the virus lies dormant within the DNA of the host cell
prion
virus that converts host brain proteins into misshapen proteins
viroids
plant viruses
phage
virus that infects bacteria
transformation
uptake of foreign DNA from the surronding environment