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