Sample Interview Questions: Discovery Research in Biotech

by | March 10, 2009

The following sample interview questions and answers are for the types of questions you should expect during an interview for a research associate position

    1. What technique is used to measure the number of copies of a gene or an RNA molecule in human tissues?
    PCR or polymerase chain reaction in real time, as opposed to the conventional method, because the number of copies of the target molecule can be monitored for each PCR cycle.

    2. What are the limitations of blotting techniques and what alternatives can you suggest?
    The major limitation of blotting procedures is the length of time needed and the fact that they can accommodate only one probe at a time. DNA microchip technology permits the analysis of thousands of genes at the same time. DNA molecules are attached to the wafers in an organized array and are called the probes. DNA molecules taken from tissues are hybridized to the chips and are called targets, which are labeled with fluorescent light. The probes that have hybridized to the fluorescent targets are then identified by fluorescence microscopy.

Filed Under: Interviewing


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