A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably

TLS Online TPP Program

#Question id: 19199

#Unit 12. Applied Biology

Example of calorimetric biosensor could be

1. Hydrogen peroxide and Catalase 

2.  Glucose oxidase

3. HCG and antibody 

4. Peptides and trypsin

Which among the following is the example?

TLS Online TPP Program

#Question id: 30060

#Unit 7. System Physiology – Animal

The parts of the heart normally beat in orderly sequence. which of the following sequence is correct?

TLS Online TPP Program

#Question id: 4863

#Unit 8. Inheritance Biology

Two genes of a flower, one controlling blue (B) versus white (b) petals and the other controlling round (R) versus oval (r) stamens, are linked and are 10 map units apart. You cross a homozygous blue-oval plant with a homozygous white-round plant. The resulting F1 progeny are crossed with homozygous white-oval plants, and 1,000 F2 progeny are obtained. How many plants of each of the four phenotypes do you expect?

TLS Online TPP Program

#Question id: 4905

#Unit 8. Inheritance Biology

Which of the correct feature of genetic material effect?

TLS Online TPP Program

#Question id: 19190

#Unit 13. Methods in Biology

Emulsion or droplet PCR is another modification of PCR. Which of the statement holds true?