RNA STRUCTURE QUIZ

nonsense mutation

lethal mutation

transversion

none of these

conversion of guanine to xanthine

formation of a thymine-dimer

None of these

deamination of cytosine to uracil

Both (a) and (b)

Genotype

Phenotype

None of these

distinctive fluorescent tag

cytosine at start

different radioactive tag

unique antibody bound to it

stable

influenced by the environment

temporary

not heritable

Analogous mutations

None of these

Spontaneous mutations

Induced mutations

methodical sequencing a few large cloned fragments of DNA

All of these

rapidly sequencing thousands of small randomly cloned fragments

sequencing the bacterial chromosome while it is still intact

obtain a tentative identification of a new microorganism

predict the pulsed field gel pattern of a microorganism

assess relatedness of eukaryotes but not prokaryotes

predict whether a bacteria will be gram-positive or gram-negative

Incision

Ligation

All of these

Excision

shorten the length of the protein encoded by the gene

cause a shift in reading frame

cause premature termination of the mRNA

have no effect on the transcript or protein made