Cell Control

Frage	Antworten
Gene	Sequence of Nucleotide bases found in DNA, code for Polypeptide.
DNA Triplet	3 bases of DNA that code for 1 Amino Acid
Degenerate	Most Amino Acids have more than one code
Stop codes	Indicate end of polypeptide chain
Transcription	Production of mRNA from DNA
mRNA	Messenger RNA
Telomers	Protect end of chromosome from deterioration during replication
Translation	Formation of polypeptide using mRNA
tRNA	Transfer RNA
Junk DNA	Non-coding. Function not discovered or Regulatory function.
SiRNA (Small interfering RNA)	Artificially made to stop translation and gene expression
Substitution Mutations	One base pair replaces another. Can change 1 Amino Acid. Or Silent mutation.
Insertion/Deletion	1< Nucleotide pairs inserted or deleted. Causes frame shift
Cause of DNA	Mutagen, UV, X-ray, Gamma & Carcinogen
Operon	Made up of structural gene, code for enzymes, control elements and regulatory gene.
Lac Operon	Stops transcription of enzymes in absence of lactose. Induce production in presence of lactose.
Structural genes	Z coes for β Galactose. Y for Lactose permease
Operator region	Repressor molecule binds to. Turns on/off transcription of Y/Z
Promoter region	RNA polymerase binds to begin transcription of Y/Z
Homeobox	Control development of zygote onto complete organism.
Apoptosis	Programmed cell death. Removed unwanted structures

Zusammenfassung der Ressource

	Erstellt von t0019283 vor fast 11 Jahre