Practice Questions

TLS Online TPP Program

#Question id: 4699

The theory of evolution is most accurately described as

#Unit 11. Evolution and Behavior

an educated guess about how species originate.
one possible explanation, among several scientific alternatives, about how species have come into existence.
an opinion that some scientists hold about how living things change over time.
an overarching explanation, supported by much evidence, for how populations change over time.

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TLS Online TPP Program

#Question id: 9209

#Unit 9. Diversity of Life Forms

Introduced species can have deleterious effects on biological communities by ________.

TLS Online TPP Program

#Question id: 12753

#Unit 13. Methods in Biology

Property of CTAB to precipitate plant DNA is because of presence of --------- in the DNA?

TLS Online TPP Program

#Question id: 11486

#Unit 7. System Physiology – Animal

The contraction of skeletal muscles is based on ________

TLS Online TPP Program

#Question id: 24204

#Unit 4. Cell Communication and Cell Signaling

What is the difference between trans and cis interactions during cell-cell adhesion respectively?

TLS Online TPP Program

#Question id: 947

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is not part of the synthesis reactions for histidine?