DNA Sequencing, Mutation and Repair
The promoter on an expression vector used to overproduce proteins in bacteria is

not a regulated promoter
the natural promoter of the gene being cloned
a bacterial promoter
expressed both in bacteria and mammalian cells

ANSWER DOWNLOAD EXAMIANS APP

DNA Sequencing, Mutation and Repair
Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one?

New strands do not contain cytosine bases
New strands are lower in molecular size
New strands are methylated while old strands are not
Old strands are methylated while new strands are not

ANSWER DOWNLOAD EXAMIANS APP

DNA Sequencing, Mutation and Repair
A mutagen is defined as

a chemical or physical agent that induces mutations
an inhibitor of gene modification
a molecule which stabilizes DNA thus prevents mutations from occurring
an enzyme that repairs mutations

ANSWER DOWNLOAD EXAMIANS APP