The bacteria known to be naturally competent for transformation of DNA is ? (GATE BT 2010) a) Escherichia coli b) Bacillus subtilis c) Mycobacterium tuberculosis d) Yersinia pestis Correct answer is (B) Bacillus subtilis Note: Details below are mostly verbatum of the reference mentioned in the end: About Natural Competence for Transformation: Natural competence refers to the ability of some […]
Ames test is used to determine? (GATE BT 2010) (a) The Mutagenicity of a chemical (b) Carcinogenicity of a chemical (c) Both Mutagenicity and Carcinogenicity (d) Toxicity of a chemical Correct Answer is : (A) The Mutagenicity of a chemical Ames test was developed in 1970‟s by a Biochemistry professor, Bruce Ames (hence the name), as a fast and sensitive assay to […]
Hybridoma Technology is used to produce? (GATE BT 2010) a) Monoclonal Antibodies b) Polyclonal Antibodies c) Both Monoclonal and Polyclonal d) B Cells Correct Answer is: Monoclonal Antibodies. Hybridoma technology Hybridoma technology, discovered by G.Kohler and C.Milstein(1975) refers to a technique wherein Hybrid Cells are produced by fusion of B-lymphocytes with tumour cells (Somatic Cell Fusion). The hybrid cells so […]
