Lab 1 Exam
• Question 1
Which of the following is transcribed from DNA and contains instructions
for a protein?
o Answer: mRNA
• Question 2:
Describe the flow of genetic information within the cell.
o Answer: DNA → RNA → Protein
• Question 3:
What are DNA microarray assays?
o Answer: They are a collection of single-stranded DNA fragments that
represent various genes.
• Question 4: What does each well in a microarray analysis contain?
o Answer: Identical copies of DNA fragments that carry a specific gene.
• Question 5
Which of the following genes encodes for a protein in the polyamine
biosynthesis pathway?
o Answer: ODC1
• Question 6:
If the results of a microarray analysis conducted in a research laboratory
showed that a gene turned green, what would this indicate about the gene?
o Answer: The gene is expressed (transcribed) more in normal lung
cells than in cancer cells.
, Question 7: True or False: Transcribing a gene means that it is turned “off”.
o Answer: False; it means it is turned “on”.
• Question 8: True or False: Tumor suppressor genes promote cell growth,
cell division, and cell proliferation.
o Answer: False; oncogenes promote these processes.
• Question 9 : DNA is _______ into mRNA, which is then _______ into
proteins.
o Answer: transcribed; translated
Lab 2 Exam
• Question 1
What region of the abdomen is the pancreas located in?
o Answer: Epigastric
• Question 2:
True or False: Acinar cells carry out the exocrine function of the pancreas.
o Answer: True
• Question 3
Beta cells secrete ______, while alpha cells secrete _______.
o Answer: insulin; glucagon
• Question 4:
Explain the role of the pancreas when blood glucose levels drop.
o Answer: The pancreas releases glucagon from alpha cells, which
travels to the liver to convert glycogen to glucose for release into the
bloodstream.
• Question 5: Provide the terms for both excessive and deficient insulin in the
blood.
, o Answer: Hyperinsulinemia (excessive) and Hypoinsulinemia
(deficient).
• Question 6:
Which condition regarding blood glucose is common in individuals with
Type I diabetes?
o Answer: Hypoglycemia
• Question 7:
If a patient was found to have a blood glucose concentration of 110 mg/dL
after waking, would this fall into the target range for non-diabetic or
diabetic individuals?
o Answer: Diabetic (Normal range for diabetics after waking is 80-130
mg/dL).
• Question 8:
Describe at least 2 of the effects of hyperinsulinemia in humans.
o Answer: Possible answers include weight gain, sugar
cravings/intense hunger, fatigue, and/or inability to focus.
• Question 9 (Select all that apply):
Which hormones are produced by the adrenal glands?
o Answers: Aldosterone, Cortisol, Norepinephrine, Sex hormones
• Question 10: Explain why the fish shown in the experiment went into a
comatose state in the insulin solution.
o Answer: The fish developed hyperinsulinemia, leading to
hypoglycemia (deficient blood glucose), causing neurological
symptoms and a comatose state.
Lab 3 Exam
• Question 1: What is a reflex?