Some members of a photosynthetic plant species are genetically resistant to an herbicide, while other members of the same species are not resistant to the herbicide. Which combination of events should cause the most effective replacement of the non-herbicide-resistant strain of plants by the resistant strain?

1. The presence of the herbicide in the environment

2. The absence of the herbicide from the environment

3. The maintenance of the proper conditions for one generation

4. The maintenance of the proper conditions for many generations

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#Question id: 23680

#Unit 13. Methods in Biology

Who won the Nobel Prize in 1993 for his work on site-directed mutagenesis?

TLS Online TPP Program

#Question id: 23678

#Unit 13. Methods in Biology

Which component is not necessary for a PCR experiment?

TLS Online TPP Program

#Question id: 23676

#Unit 13. Methods in Biology

What is the purpose of the heating cycle during PCR?

TLS Online TPP Program

#Question id: 23675

#Unit 13. Methods in Biology

After ten cycles of PCR, by approximately what factor will the number of DNA molecules in a sample be increased? Assume maximum efficiency.

TLS Online TPP Program

#Question id: 23674

#Unit 13. Methods in Biology

Why is Taq polymerase used in PCR rather than DNA polymerases from other sources?

TLS Online TPP Program

#Question id: 23671

#Unit 13. Methods in Biology

________ was the first bacterial genome sequence to be published.