An individual can inherit a gene in which expression has been altered by an ________ change with no mutation of the gene sequence
Fill in the blank with correct word.
Answer: epigenetic
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Which one of the following viruses has a single-stranded RNA genome that must be turned into a complementary molecule in order to synthesize viral protein?
A. Rotavirus B. Adenovirus C. HIV D. Polio virus E. Influenza virus
Hormones important in internal homeostatic control mechanisms are generally part of a(n) ________ feedback loop
Fill in the blank(s) with correct word
Probably the greatest advantage for the original multicellular organisms was their ability to
A) photosynthesize. B) increase their food intake. C) increase their metabolism. D) use more oxygen. E) avoid predation.
Which of the following is a possible future benefit of stem cell research?
A) developing a vaccine for cancer B) reversing damage from a heart attack C) generating embryos from nonliving tissue D) increasing a person's intelligence quotient