Mutation and Mutagenesis — MCQs

A chemical is tested for carcinogenicity by examining its mutagenic effects on bacterial cells in culture. Which of the following tests is used to make this determination?

Best method for the detection of mutations with low allele frequency is:

A frameshift mutation does not affect the complete amino acid sequence if it occurs in multiples of what number?

Ionizing radiation acts on tissue leading to

In CRISPR-Cas9 system, which repair mechanism is predominantly used for genome editing?

Antibiotic sensitivity and resistance of microorganisms are determined by

Which of the following mechanisms of genetic transfer is illustrated here?

The transfer of genetic information from one cell to another can occur by three methods. Phage mediated transfer of cell DNA into host is known as?

Bacteria are simple genetic units with all of the following properties, EXCEPT:

A bacterium acquires an antibiotic-resistance gene that is carried by a phage vector. The phage vector carries primarily the antibiotic-resistance gene, rather than randomly chosen pieces of bacterial DNA. This is an example of which of the following?