DNA SEQUENCING, MUTATION AND REPAIR QUIZ

Yeast chromosome XI

None of these

Yeast chromosome III

Arabidopsis chromosome IV

a large deletion within the reading frame of a gene

an abnormal elongation of a polypeptide

a premature termination of the synthesis of a polypeptide

modification of mRNA

Spontaneous mutations

Analogous mutations

Induced mutations

None of these

Both (a) and (b)

None of these

Genotype

Phenotype

nonsense mutation

lethal mutation

none of these

transversion

not a regulated promoter

the natural promoter of the gene being cloned

a bacterial promoter

expressed both in bacteria and mammalian cells

Excision repair

Never leads to mutation

Photoreactivation

SOS repair

phosphorylation

excision repair

photoreactivation

photosynthesis

unique antibody bound to it

different radioactive tag

distinctive fluorescent tag

cytosine at start

All of these

sequencing the bacterial chromosome while it is still intact

rapidly sequencing thousands of small randomly cloned fragments

methodical sequencing a few large cloned fragments of DNA