chapter 15 Flashcards
experiments with nutritional mutants in Neurospora by beadle and tatum provided evidence for ?
Genes specifying enzymes
“One gene, one enzyme/polypeptide”
what is the central dogma of molecular biology
Information passes from DNA to rna to protein
DNA-> Transcription -> mRNA -> translation-> protein
in the genetic code , one codon ____
consists of three bases, specifies a single amino acid
eukaryotic transcription differs from prokaryotic in that
eukaryotes have three rna polymerases
anticodon would be found on which type of RNA
tRNA (transfer rna)
RNA polymerase bind to a ____ to initiate____
promoter, transcription
during translation codon in mRNA is read by
“A “site on the ribsome
The splicing process
can produce multiple mRNA’s from the same transcript
enzyme that forms peptide bonds is called petidyl transferase because
it transfers growing peptide from tRNA to next amino acid
in comparing gene expression in prok and euk
eukaryotic genes can produce more than one protein, both produce mRNA that are colinear with the protein
codon CCA could be mutated to
produce a silent mutation
an inversion will
only cause mutant phenotype if the inversion breakpoints fail within the genes
what is relationship bt mutation and evolution
mutations create new alleles
