Excitatory neurotransmitters are most like what part of an automobile?
A) brakes
B) windshield wiper
C) accelerator
D) horn
Answer: C
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What is the difference between the function of DNA and the function of proteins?
A) DNA performs most cellular functions and proteins store information. B) DNA stores genetic information in the order of nucleotides and proteins store genetic information in the order of amino acids. C) DNA stores genetic information and proteins perform most cellular functions. D) DNA provides structure to the cell and proteins act as enzymes.
In support of the Recent Africa Origin hypothesis, the oldest dated fossils of H. sapiens found in Africa are reliably
dated at 100,000 years old. ____________________ Indicate whether the statement is true or false.
Of what benefit is the metallothionein gene that is inserted into golden rice genome?
A. It supplies extra sulfur to increase iron uptake. B. It increases the vitamin A content. C. It increases the beta-carotene content. D. It increases the iron content. E. All of the choices are correct.
A reddening of the skin of the face that intensifies when exposed to the sun is characteristic of
A) herpes. B) chickenpox. C) rubeola. D) rubella. E) erythema infectiosum.