For optimal activity, lysosomal acid hydrolases requires: 

a. Activation by proteasomal degradation

b. Activation by proteolytic cleavage

c. Requires an acid environment

TLS Online TPP Program

#Question id: 13073

#Unit 13. Methods in Biology

Restriction enzymes must be use in RFLP and RAPD markers for genome mapping in plants;

TLS Online TPP Program

#Question id: 15654

#Unit 13. Methods in Biology

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Next you isolate a mutation, designated MelB–, which gives uninducible melibiase activity. Mapping experiments show that MelB– is linked to Mel1. Using an F' factor that carries the chromosomal region surrounding Mel1, you perform the following genetic tests:

                      

Describe the basic genetic properties of the MelB– mutation?

TLS Online TPP Program

#Question id: 13161

#Unit 4. Cell Communication and Cell Signaling

Which of the following mechanism depends on the activation of heterotrimeric G proteins?

TLS Online TPP Program

#Question id: 23876

#Unit 13. Methods in Biology

Which of the following is one of the technical reasons why gene therapy is problematic?

TLS Online TPP Program

#Question id: 10206

#Unit 6. System Physiology – Plant

The excess energy is absorbed by three carotenoids molecules such as violaxanthin, antheraxanthin, and zeaxanthin, which of the following statements correct about these molecules?