The genome of prokaryotes consists of
a. a single linear DNA molecule.
b. a single circular DNA molecule.
c. many linear DNA molecules.
d. many circular DNA molecules.
e. a single DNA molecule that may be circular or linear, depending on the species.
E
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Cancer is caused by rapid cell division that results in tumor formation. Cancer cells often have
mutations in CDK genes. Explain how a mutation in a CDK might help lead to uncontrolled cell growth.
What will be an ideal response?The most definitive test to diagnose a helminth infection is
A. a good medical history of the patient, including recent foreign travel. B. an ova and parasite smear for microscopy. C. a serological test for the presence of anti-helminthic antibodies. D. a blood cell count to look for elevated levels of eosinophils.
Which of the following is NOT an example of
an extracellular matrix?
a. cuticles of plants b. cuticles of crabs c. cell walls d. cell membranes e. basement membranes
Carbon can form ________ covalent bonds
A) single B) double C) triple D) single and double E) single, double, and triple