Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 33258
TLS Online TPP Program

#Question id: 11953

Which of the following is a difference between vitamins and minerals?

#Unit 7. System Physiology – Animal
  1. Vitamins are involved in regulating enzyme activity, but minerals are not.

  2. Vitamins are organic molecules, but minerals are inorganic molecules.

  3. Minerals are obtained by an animal through dietary sources, but vitamins are made by the animal.

  4. Vitamins and minerals are only obtained by digesting plants.

More Questions
TLS Online TPP Program

#Question id: 1534

#Unit 4. Cell Communication and Cell Signaling

Cadherin proteins help animal cells stick (adhere) to each other. Choose which statement about cadherin in cancer cells that are metastasizing (spreading) throughout a patient's body is most likely correct.
TLS Online TPP Program

#Question id: 1533

#Unit 4. Cell Communication and Cell Signaling

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

#Question id: 1532

#Unit 4. Cell Communication and Cell Signaling

For a particular microarray assay (DNA chip), cDNA has been made from the mRNAs of a dozen patients' breast tumor biopsies. Which of the following types of evidence will researchers be looking for in order to determine if the cells are cancerous?
TLS Online TPP Program

#Question id: 1530

#Unit 4. Cell Communication and Cell Signaling

What are the differences and similarities between the transforming genes of retroviruses and those of DNA tumor viruses?
TLS Online TPP Program

#Question id: 1529

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements are true regarding to gain-of-function and loss-of-function mutations with respect to cancer.
TLS Online TPP Program

#Question id: 1528

#Unit 4. Cell Communication and Cell Signaling

Mutation of p53 is described as a dominant-negative mutation. Which of the following statement is correct regarding to the mechanism by which this mutation causes the dominant-negative phenotype?