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TLS Online TPP Program

#Question id: 1873

Mutations in the gene encoding which of the following most commonly results in severe combined immunodeficiency (SCID)?

#Unit 4. Cell Communication and Cell Signaling

  1. Adenosine deaminase (ADA)

  2. IL-7 receptor α chain

  3. Gamma C interleukin receptor component of the interleukin-15 receptor

  4. RAG-2 (recombination activating gene-2)

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TLS Online TPP Program

#Question id: 5299

#Unit 8. Inheritance Biology

One particular group of mutant strains specifically required the amino acid arginine to grow, and these arginine auxotrophs formed the basis of their subsequent analysis, given in table 
TLS Online TPP Program

#Question id: 15387

#Unit 8. Inheritance Biology

How might the results of Bernard Davis's U tube experiment have been different if each strain were only mutant for a single gene?
TLS Online TPP Program

#Question id: 15388

#Unit 8. Inheritance Biology

What do transduction, transformation, and conjugation have in common?
TLS Online TPP Program

#Question id: 15406

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program

#Question id: 15407

#Unit 8. Inheritance Biology

The end result of F factor mediated conjugation:
TLS Online TPP Program

#Question id: 15408

#Unit 8. Inheritance Biology

Which of the following is not a protein or group of proteins required for conjugation to occur?