TLS Online TPP Program

#Question id: 2012


The DGS-like phenotype can be produced in a specific knockout mouse for HA3, a Hox gene. HA3 is known to be involved in developmental regulation in the mouse. Which of the following would be an appropriate test for following the gene in the mouse progeny?

#Section 2: General Biology
  1. bone marrow biopsy

  2. assay for environmental agents known to cause birth defects

  3. chest X-ray

  4. measurement of the proportion of CD4 cells to total lymphocytes

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TLS Online TPP Program

#Question id: 1274

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following are included as functions of the extracellular matrix?

a. supporting differentiation               b. synthesis of procollagen

c. binding growth hormones               d. filtering

TLS Online TPP Program

#Question id: 1275

#Section 3: Genetics, Cellular and Molecular Biology

The functions of the extracellular matrix include:

a. supporting differentiation.

b. inducing morphogenesis.

c. binding growth hormones.

d. repairing damaged tissue

which of the following combination is correct?

TLS Online TPP Program

#Question id: 1276

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following does not belong to the major families of cell surface adhesion molecules?

TLS Online TPP Program

#Question id: 1277

#Section 3: Genetics, Cellular and Molecular Biology

Cadherin cellular adhesion molecules promote:

TLS Online TPP Program

#Question id: 1279

#Section 3: Genetics, Cellular and Molecular Biology

A tight junction is made up of which of the following proteins?

a. tricellulin                                                     b. occludin

c. claudin                                                         d. connexins

TLS Online TPP Program

#Question id: 1280

#Section 3: Genetics, Cellular and Molecular Biology

Cellular responses to adhesion receptor signaling do not include: