TLS Online TPP Program

#Question id: 12225


Which of the following interactions can correctly be labeled coevolution?

#Unit 10. Ecological Principles
  1. The  tendency of  coyotes  to  respond  to  human  habitat  encroachment by  including  pet  dogs  and  cats  in their diets
  2. A genetic change in a virus that allows it to exploit a new host, which responds to virus-imposed selection by changing its genetically controlled habitat preferences
  3. A genetic change in foxes that allows them to tolerate human presence (and food) 
  4. The adaptation of cockroaches to human habitation

More Questions
TLS Online TPP Program

#Question id: 12008

#Unit 10. Ecological Principles

When exposed to a cold environment for several weeks, many small mammals dramatically increase their capacity for heat production primarily by means of

TLS Online TPP Program

#Question id: 10931

#Unit 7. System Physiology – Animal

A 24-year-old African-American man comes to the emergency room 3 hr after the onset of severe back and chest pain. These problems started while he was skiing. He lives in Los Angeles and had a previous episode of these symptoms 5 years ago while visiting Wyoming. He is in obvious pain. Laboratory studies show the following:

Hemoglobin                                        11 gm/dl

Leukocyte count                                 22,000/μl3

Reticulocyte count                              25%

What is the diagnosis of this patient?

TLS Online TPP Program

#Question id: 3756

#Unit 3. Fundamental Processes

 In E. coli, which enzyme catalyzes the elongation of a new DNA strand in the 5' → 3' direction?

TLS Online TPP Program

#Question id: 4261

#Unit 3. Fundamental Processes

Polyadenylation can promote translation

a. of the fragile-X gene.                     

b. of stored oocyte mRNAs.

c. by allowing for greater interaction at the 5´ end.

d. by allowing for greater interaction with translation initiation factors.

TLS Online TPP Program

#Question id: 15333

#Unit 4. Cell Communication and Cell Signaling

Which of the following surface marker protein found on the B-cell and function as co-receptor__