The egg of a fruit fly has 4 individual chromosomes. How many chromosomes are in a somatic cell of a fruit fly?
A) 4
B) 2
C) 8
D) 16
Answer: C
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A woman visits a doctor. After hearing her symptoms and running some blood work, the doctor determines that she has an under-active pineal gland. What were her likely symptoms?
A. insomnia (due to low melatonin levels) B. muscle soreness and inflammation (due to low cortisol levels) C. increased urination (due to high glucose levels) D. constipation (due to low gastrin levels)
Labeled, known, short stretches of DNA used to detect a specific sequence of nucleotides in a mixture are known as ________.
A. biotechnology B. genetic engineering C. recombinant DNA D. gel electrophoresis E. gene probes
Lichens can form from the symbiotic relationship between a photosynthetic bacterium and a fungus
Indicate whether the statement is true or false
Which of these viruses is known to cause a persistent viral infection?
A. Measles virus B. Herpes simplex virus C. Varicellovirus D. Hepatitis A virus