Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 27349
TLS Online TPP Program

#Question id: 9197

What is the biological significance of genetic diversity between populations?

#9. Diversity of Life Forms
  1. Genes for traits conferring an advantage to local conditions are unlikely.
  2. The population that is most fit would survive by competitive exclusion.
  3. Genetic diversity reduces the probability of extinction.
  4. Diseases and parasites are not spread between separated populations.
More Questions
TLS Online TPP Program

#Question id: 24119

#Aptitude

As soon as the details of the election were released to the media, the newspaper was inundated with calls—far too many to be handled effectively.
TLS Online TPP Program

#Question id: 1395

#4. Cell Communication and Cell Signaling

Which of the following mutations would promote malignancy in cells whose proliferation is inhibited by TGFβ?

a. overexpression of Smad2               

b. loss of Smad 4

c. overexpression of TGFβ receptor I

d. loss of TGFβ receptor II
TLS Online TPP Program

#Question id: 16322

#7. System Physiology – Animal

Immediately after putting on a shirt, your skin might feel itchy. However, this perception soon fades due to ________.
TLS Online TPP Program

#Question id: 10237

#10. Ecological Principles

Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?

 
TLS Online TPP Program

#Question id: 7754

#5. Developmental Biology

In autophagy, the endoplasmic reticulum (ER) first gives rise to a cup-shaped, membranous cisterna called the