Practice Questions

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#Question id: 4818

Researchers found a strain of E. coli bacteria that had mutation rates one hundred times higher than normal. Which of the following statements correctly describes the most likely cause of these results?

#Unit 3. Fundamental Processes

The single-strand binding proteins were malfunctioning during DNA replication.
There were one or more base pair mismatches in the RNA primer.
The proofreading mechanism of DNA polymerase was not working properly.
The DNA polymerase was unable to add bases to the 3′ end of the growing nucleic acid chain.

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TLS Online TPP Program

#Question id: 11000

#Unit 7. System Physiology – Animal

What is her ventricular ejection fraction?

TLS Online TPP Program

#Question id: 6545

#General Aptitude

The next number of the sequence 1,5,14,30,55, Is

TLS Online TPP Program

#Question id: 12319

#Unit 10. Ecological Principles

Fred and Joe, two unrelated, mature male gorillas, encounter one another. Fred is courting a female. Fred grunts as Joe comes near. As Joe continues to advance, Fred begins drumming (pounding his chest) and bares his teeth. Joe then rolls on the ground on his back, gets up, and quickly leaves. This behavioural pattern is repeated several times during the mating season. Choose the most specific behavior described by this example

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#Question id: 12160

#Unit 9. Diversity of Life Forms

Which of these was not derived from an ancestral alpha proteobacterium?

TLS Online TPP Program

#Question id: 126

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement is false about lipid rafts?