To see objects smaller than those that can be resolved by a light microscope, we usually use microscopes that employ a beam of:
a. electrons
b. photons
c. protons
d. neutrons
e. X-rays
a
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Deamination is a process that removes:a
the amino group from amino acids. b. the amino group from nucleic acids. c. amines from the bloodstream. d. amines from nucleic acids. e. ammonia from blood.
What properties are associated with a malignant cancer?
A. fast growing B. invades surrounding tissue C. metastatic D. All of the above are correct.
Explain why the presence of many Archaea has been confirmed only by community sampling of rRNA genes and not by culture in the laboratory. How has metagenomics helped to solve this problem?
What will be an ideal response?
Cushing's syndrome causes weight gain, excessive sweating, and muscle weakness. It can result from either the production of abnormally high levels of cortisol by the body or overuse of glucocorticosteroid drugs. You are an endocrinologist working with a Cushing's syndrome patient. She is on hormonal birth control pills and takes an occasional ibuprofen.What lab tests would you order to find the source of the problem?
A. Cortisol, ACTH, and CRH B. Cortisol and ACTH C. None-the birth control pills include corticosteroid hormones. She should switch to another form of birth control. D. Cortisol, LH, and FSH