Practice Questions

TLS Online TPP Program

#Question id: 1533

Why might using retroviral vectors for gene therapy increase the patient's risk of developing cancer?

#Unit 4. Cell Communication and Cell Signaling

Retroviral vectors may introduce proteins from the virus.
Retroviral vectors do not express the genes that were introduced into a patient's cells.
Retroviral vectors do not integrate their recombinant DNA into the patient's genome.
Retroviral vectors integrate recombinant DNA into the genome in ways that may misregulate the expression of genes at or near the site of integration.

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TLS Online TPP Program

#Question id: 7700

#Unit 9. Diversity of Life Forms

The legless condition that is observed in several groups of extant reptiles is the result of ________.

TLS Online TPP Program

#Question id: 7703

#Unit 9. Diversity of Life Forms

Carolus Linnaeus believed that species remained fixed in the form in which they had been created. Linnaeus would have been uncomfortable with ________.

TLS Online TPP Program

#Question id: 7704

#Unit 9. Diversity of Life Forms

The best classification system is that which most closely ________.

TLS Online TPP Program

#Question id: 7705

#Unit 9. Diversity of Life Forms

Based on this tree, which statement is correct?

TLS Online TPP Program

#Question id: 8289

#Unit 9. Diversity of Life Forms

The term convergent evolution is most applicable to which of the following features?