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TLS Online TPP Program

#Question id: 5815

In the Ames test:

#Unit 8. Inheritance Biology

  1. Mutagens cause lethal mutations, reducing the number of colonies.

  2. Mutagens cause mutations that disrupt the ability of the cell to produce histidine.

  3. Mutagens will cause an increase in the number of revertants.

  4. Only mutagens that cause transitions can be identified.

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TLS Online TPP Program

#Question id: 32436

#Unit 2. Cellular Organization

In microtubules, the end with exposed β-subunits is the ___?___, while the end with exposed α-subunits is the __?____.
TLS Online TPP Program

#Question id: 26818

#Unit 8. Inheritance Biology

A mutant phenotype is produced by an individual of the blood group AB, due to some genetics effect  it produces only one copy of the gene another  copy of the gene is missing. this condition is known as
TLS Online TPP Program

#Question id: 10838

#Unit 10. Ecological Principles

Fighting over shared resources is called
TLS Online TPP Program

#Question id: 2085

#Unit 2. Cellular Organization

Cholesterol mixes with phospholipids in a biomembrane because cholesterol molecules are
TLS Online TPP Program

#Question id: 1365

#Unit 4. Cell Communication and Cell Signaling

Which of the following best describes the structure of integrins?