RNA
Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
mRNA
Translation ends when what codons are read:
UAG
UAA
UGA
What is the correct sequence of the transfer of information in living organisms?
DNA to RNA to protein
Are operons found in prokaryotes or eukaryotes?
Prokaryotes
A mutation that involves one or a few nucleotides is generally called
point mutation
From which molecules are mRNA molecules transcribed:
DNA
What is the start codon?
AUG
How may nucleotides are needed to specify six amino acids
18
What regulates the expression on most eukaryotic genes?
transcription factors
Are mutations always detrimental
No, they can be beneficial or cause no change
What are 3 types of point mutation
Insertion, Deletion, Substitution
What amino acid is associated with the START codon?
Methionine
What is produced during translation?
Polypeptide
What is a promoter?
a binding site for RNA polymerase
A substance such as tobacco that can cause a genetic change is called a
mutagen
Which nitrogenous base indicates the nucleic acid is RNA?
Uracil
During RNA processing, which portion of the mRNA is cut out?
introns
In eukaryotes, where does transcription take place?
nucleus
Gene regulation in eukaryotic cells allows for
specializtion/differention
When a chromosome undergoes a deletion mutation, information is?
lost
What is produced during transcription?
mRNA
Which enzyme separates the DNA helix during transcription?
RNA Polymerase
In eukaryotes, where does translation take place?
cytoplasm
When will the repressor be OFF the promoter region of the lac operon?
When lactose is present
What is the name for a mutation that involves one nucleotide only?
point mutation