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TLS Online TPP Program

#Question id: 7098

The role of maternal factors (such as Vg-1, Xwnt-1, and VegT) packaged into the vegetal region of the Xenopus oocyte is:

#Unit 5. Developmental Biology
  1. in establishing the future dorso-ventral body axis.
  2. to allow the vegetal region to divide during cleavage.
  3. to make the vegetal region denser, so that the egg always floats with its animal pole upward.
  4. to specify the future animal-vegetal body axis.
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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: 23676

#Unit 13. Methods in Biology

What is the purpose of the heating cycle during PCR?
TLS Online TPP Program

#Question id: 23677

#Unit 13. Methods in Biology

Which of the following is not an application of PCR?
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: 23679

#Unit 13. Methods in Biology

Which is not an important feature of site-directed mutagenesis of cloned DNA?
TLS Online TPP Program

#Question id: 23680

#Unit 13. Methods in Biology

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