A team of biologists collects samples from a stream.Using PCR and other techniques, they amplify numerous DNA sequences.In doing so, they discover many new bacterial species.These biologists are working in the field of
A) metagenomics.
B) functional genomics.
C) comparative genomics.
D) relational genomics.
E) proteomics.

Question

Quizplus · Accepted Answer

The biologists are using PCR and other techniques to amplify DNA sequences from the stream samples, which suggests that they are studying the collective DNA of the microbial community in the sample. This approach is known as metagenomics, which involves studying the genetic material from environmental samples without the need to culture individual microbes. By discovering many new bacterial species, the biologists are uncovering novel genetic information that can help improve our understanding of bacterial diversity, ecology, and evolution. Thus, the best choice is A.

A Team of Biologists Collects Samples from a Stream