The finding that mutations in synapse genes are associated with many genetic disorders that have a behavioral
component suggests that _____.
a. individuals with these mutations lack synapses
b. individuals with these mutations lack neurotransmitters
c. malfunctions in presynaptic neurons cause abnormal behavior
d. malfunctioning synapses are associated with abnormal behavior
e. behavior disorders are attributable to environmental factors
d
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Production of the iron-storing protein ferritin is regulated by aconitase, which binds to a 30-nucleotide sequence at the beginning of the ferritin mRNA and interferes with ribosome binding. Aconitase must be a
A. transcription repressor protein. B. translation repressor protein. C. RNA interference protein. D. translation initiation protein. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about translational regulation? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
When we examine the fossil record, we find that older fossils are in strata below younger fossils.
a. true b. false
At a given position, homologous chromosomes have Select one:
a. the same genes but can have different alleles. b. different genes and alleles. c. different genes, but can have the same alleles. d. the same genes and alleles.
From what food source do most of the calories in a typical American diet come?
A) meat B) cereal grains C) legumes D) plant leaves