Deletion of which gene not only was accompanied by the abolition of antibiotic formation but also severely impaired growth on agar media.

TLS Online TPP Program

#Question id: 28062

#Unit 1. Molecules and their Interaction Relevant to Biology

Thermostable proteins are stable at high temperature due to

a. Vander Waals interaction

b. Ionic bond only

c. High protein’s hydrophobic core 

d. high incidence of salt bridges

Which of the following is correct 

TLS Online TPP Program

#Question id: 23168

#Unit 13. Methods in Biology

What are the advantages of using secondary antibodies in indirect immunofluorescence?

1.  It makes easy to choose a different conjugate no matter the primary antibody

2. Enhance detection by localizing more conjugate at the antigen

3. Conjugation of fluorophore can interfere with the primary antibody’s recognition of the antigen

Which of the following options is correct?

TLS Online TPP Program

#Question id: 10672

#Unit 10. Ecological Principles

Which of the following is incorrect match of protective strategy done by organism?

TLS Online TPP Program

#Question id: 10748

#Unit 10. Ecological Principles

Learning how much to study to earn an “a” in biology is an example of _____________.

TLS Online TPP Program

#Question id: 11060

#Unit 7. System Physiology – Animal

A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?