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TLS Online TPP Program

#Question id: 5249

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?

#Unit 8. Inheritance Biology

  1. He used genes that could not be packaged into a bacteriophage head

  2. He used bacterial strains that could not fit through the filter

  3. He used bacterial strains that did not host a prophage.

  4. He used virulent bacteriophage

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TLS Online TPP Program

#Question id: 9229

#Unit 9. Diversity of Life Forms

Which of the following is a generally accurate statement about the current research regarding forest fragmentation?
TLS Online TPP Program

#Question id: 5027

#Unit 11. Evolution and Behavior

Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?

1. Protostomes invade terrestrial environments.

2. Cambrian explosion occurs.

3. Deuterostomes invade terrestrial environments.

4. Vertebrates become top predators in the seas.
TLS Online TPP Program

#Question id: 17082

#Unit 12. Applied Biology

What is an Aminopterin
TLS Online TPP Program

#Question id: 1047

#Unit 4. Cell Communication and Cell Signaling

A virion is a(n)
TLS Online TPP Program

#Question id: 23398

#General Aptitude

There are five books A, B, C, D and E. The book C lies above D, the book E is below A and B is below E. Which is at the bottom?