What enzymes are used to cut DNA molecules? How do they work?
What will be an ideal response?
Restriction enzymes are used to cut DNA in a particular spot. Each restriction enzyme is specific to the sequence of base pairs that they will cut. The "cut" is typically in a staggered fashion. The DNA of the vector is cut with the same restriction enzyme as the DNA from the organism whose gene is to be transferred, and when the two strands are mixed, ligases seal these matching fragments.
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Approximately 95 percent of cases of cervical cancer are caused by _____.
A. cystoceles B. poor hygiene C. genetic factors D. the human papilloma virus (HPV)
Denitrification in Marine Dead Zones
What will be an ideal response?
A lesion known as a whitlow is the result of infection with (chlamydia/herpes/syphilis)
What will be an ideal response?
Because attenuated live vaccines contain viruses that are less virulent, many booster vaccines must be given to produce an effective immune response
Indicate whether the statement is true or false