Variation at the molecular level of a gene is called a(n) _________
A. nucleotide
B. chromosome
C. allele
D. trait
E. None of the answers are correct
C
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One strand of DNA has the sequence 5? GGTCTA 3?. What is the sequence of the other strand?
A) 5? CCAGAT 3? B) 5? ATCTGG 3? C) 3? GGTCTA 5? D) 5? TAGACC 3?
A commonly cited example of genetic drift has occurred within:a
the cheetah population. b. the parasite that causes malaria. c. scale-eating fish. d. humans, as evidence by birth weight. e. insects called water boatmen.
The chemical and physical processes that are involved in energy and molecular transformations in living organisms are collectively termed ________
Fill in the blank(s) with correct word
An amine hormone important in the stress response in vertebrates is
A. melatonin. B. serotonin. C. epinephrine. D. dopamine. E. cortisol.