Which of the following COVID-19 testing types detects when an individual is infectious and capable of transmitting SARS-CoV-2 to others? Select ALL that apply.

In a cloned animal like Dolly the Sheep, who is Dolly genetically identical to?

You are testing patients for presence of a virus. For this particular lab test, the Ct value cut-off for a positive test is 20. Which of the following patient samples are positive for the virus? Select all that apply.   

A restriction enzyme site that is 6 base pairs in length:

The picture above depicts DNA from a crime scene. The DNA in red is from the crime scene. The DNA in green is from a suspect. Each DNA sample was cut with the same restriction enzyme. You are serving on a jury in which this piece of evidence is presented. What do you conclude?

What is the purpose of the electrical current in gel electrophoresis?

When plasmids are used in genetic engineering to produce a large quantity of a protein such as insulin: Select ALL that apply.

A individual tests positive for the COVID-19 PCR diagnostic test. What does this indicate? 

Which of the following aspects of the COVID-19 PCR testing strategy a little different than a typical PCR? Select all that apply.

Which is a true statement that describes the difference between embryonic and adult stem cells?