Practice Questions

TLS Online TPP Program

#Question id: 3781

Hershey and Chase used a DNA-based virus for their work. How might the results have been different if they had used an RNA virus?

#Unit 3. Fundamental Processes

With an RNA virus, radioactive protein would have been in the final pellet.
With an RNA virus, radioactive RNA would have been in the final pellet.
With an RNA virus, neither sample would have had a radioactive pellet.
With an RNA virus, the protein shell would have been radioactive in both samples.

More Questions

#Question id: 5419

#General Aptitude

The average of marks of 5 students in a class test is 6. The average of three of them is 4. What is the average of the remaining two marks?

#Question id: 31410

#Unit 4. Cell Communication and Cell Signaling

#Question id: 31290

#Unit 5. Developmental Biology

#Question id: 3694

#Unit 3. Fundamental Processes

In eukaryotes, DNA polymerase alpha is a multi-subunit enzyme with different functions. They include:

#Question id: 13164

#Unit 4. Cell Communication and Cell Signaling

Match the following.

Column I	Column II	Column III
A. G Protein–Coupled Receptors That Activate PDE	i. cAMP	a. Increase in conversion of glycogen to glucose
B. G Protein–Coupled Receptors That Activate Adenylyl Cyclase	ii. cGMP	b. Hyperpolarization or depolarization of photoreceptor membrane
C. G Protein–Coupled Receptors That inhibit Adenylyl Cyclase	iii. DAG	c. activates genes necessary for cell division
D. G Protein–Coupled Receptors That Trigger Elevations in Cytosolic and Mitochondrial Calcium		d. increase in K+ permeability hyperpolarizes the membrane

Which one of the following is correct?