You are examining an organism recently found on Mars and are currently trying to identify one of its neurotransmitters. Biochemical characterization indicates that it is a derivative of the amino acid tyrosine,
so you classify the novel neurotransmitter as a(n)
A) acetylcholine analogue.
B) catecholamine.
C) neuropeptide.
D) serotonin analogue.
E) GABA analogue.
Answer: B
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The ABO blood type gene is an example of ___________, which means that heterozygotes display two phenotypes at the same time
a. advanced hybridism b. fading c. incomplete dominance d. codominance e. cross-fertilization
Which of the following initiates the process of transcription?
a. RNA polymerase b. DNA polymerase c. helicase d. transfer RNA e. exons
Which transport process requires ATP utilization?
a. active transport b. osmosis c. diffusion d. facilitated diffusion e. diffusion through a channel
What is the general position of the consensus sequence called the GC box? What is its sequence?
A) promoter; CAAT B) terminator; GGGCGG C) promoter; GGGCGG D) attenuator; GGGCGG E) terminator; CAAT