Practice Questions

TLS Online TPP Program

#Question id: 683

Which factor does not help to explain why many proteins exhibit quaternary structure?

#SCPH28 | Zoology

Oligomers are usually more stable than the free monomers.
Active sites can be formed when the protein chains associate.
The subunits always are able to maintain the same three-dimensional structure whether they are associated into an oligomer or not.
Increased efficiency by the sharing of the same subunit with the same function among different proteins.

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TLS Online TPP Program

#Question id: 5032

#SCPH06 I Botany

There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example?

TLS Online TPP Program

#Question id: 11989

#SCPH28 | Zoology

If mayflies lay eggs on roads instead of in water, this behavior could involve which of the following?

TLS Online TPP Program

#Question id: 2307

#SCPH28 | Zoology

Bacteria that have cell walls with thick layers of peptidoglycan are:

TLS Online TPP Program

#Question id: 11978

#SCPH06 I Botany

Which of the following statements about the ocean pelagic biome is true?