Genetic Mutations: Mastery Test
Exam Q’s and A’s
The trp operon in E.coli regulates genes that code for enzymes required for
synthesis of the amino acid tryptophan. The trp operon is a repressible
operon. When tryptophan is not available in the environment, the trp
repressor protein is ______ Therefore, RNA polymerase can bind to the
________ to begin transcription. - -1.) inactive
2.) promoter
- Gene expression in eukaryotes can be requlated at various levels. Certain
mutations in flies may cause them to develop an extra set of legs or wings.
___________, which determine the formation and arrangement of body parts in
multicellular organisms, control gene expression by regulation of
__________________. - -1.) hox genes
2.)DNA transcriptions
- Jason adds the antibiotic penicillin to a bacterial culture. The bacteria
develop genetic modifications in their genome, which gives them resistance
to the antibiotic penicillin. What caused this genetic modification? - -
A.)mutations to the DNA sequence
- How do mutations lead to variation? - -C.)by producing changes in the
genetic code
- Which mutation does the given change in nucleotide sequence represent? -
-C.)inversion
- you're welcome!! :) - -100% (5/5)
-
Exam Q’s and A’s
The trp operon in E.coli regulates genes that code for enzymes required for
synthesis of the amino acid tryptophan. The trp operon is a repressible
operon. When tryptophan is not available in the environment, the trp
repressor protein is ______ Therefore, RNA polymerase can bind to the
________ to begin transcription. - -1.) inactive
2.) promoter
- Gene expression in eukaryotes can be requlated at various levels. Certain
mutations in flies may cause them to develop an extra set of legs or wings.
___________, which determine the formation and arrangement of body parts in
multicellular organisms, control gene expression by regulation of
__________________. - -1.) hox genes
2.)DNA transcriptions
- Jason adds the antibiotic penicillin to a bacterial culture. The bacteria
develop genetic modifications in their genome, which gives them resistance
to the antibiotic penicillin. What caused this genetic modification? - -
A.)mutations to the DNA sequence
- How do mutations lead to variation? - -C.)by producing changes in the
genetic code
- Which mutation does the given change in nucleotide sequence represent? -
-C.)inversion
- you're welcome!! :) - -100% (5/5)
-
