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TLS Online TPP Program

#Question id: 5005

Fossilized stromatolites

#Unit 11. Evolution and Behavior

  1. all date from 2.7 billion years ago.

  2. formed around deep-sea vents.

  3. resemble structures formed by bacterial communities that are found today in some warm, shallow, salty bays.

  4. provide evidence that plants moved onto land in the company of fungi around 500 million years ago.

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TLS Online TPP Program

#Question id: 5746

#Unit 8. Inheritance Biology

A base change resulting in a codon specifying an amino acid which is different than in the wild-type polypeptide
TLS Online TPP Program

#Question id: 5205

#Unit 11. Evolution and Behavior

Why is it preferable to use large computers and databases in searching for individual genes, rather than testing each sequence for possible function?
TLS Online TPP Program

#Question id: 10957

#Unit 7. System Physiology – Animal

Which of the following would most likely be used for prophylaxis of transient ischemic heart attack?
TLS Online TPP Program

#Question id: 4985

#Unit 11. Evolution and Behavior

The loss of ventral spines by modern freshwater sticklebacks is due to natural selection operating on the phenotypic affects of Pitx1 gene
TLS Online TPP Program

#Question id: 3649

#Unit 3. Fundamental Processes

In eukaryotes, clusters (tandem arrays) of about 20–50 replicons initiate simultaneously at defined times throughout: