Which of the Following is Not a Genotypic Method of Identiﬁcation

Question

Which of the following is not a genotypic method of identiﬁcation?
A) Direct antigen testing
B) DNA analysis with probes
C) rRNA sequencing
D) Pulse-ﬁeld gel electrophoresis
E) G + C composition

Accepted Answer

Direct antigen testing is a phenotypic method of identification, not genotypic. It involves detecting specific antigens present in the organism, rather than analyzing the genetic material itself.