Neanderthals are best described as
A) direct ancestors to modern humans.
B) direct ancestors to modern Europeans but not to other human populations.
C) a localized form or subspecies of Homo sapiens that was well adapted to living in caves and carrying clubs.
D) a hominin that colonized Europe independently of Homo sapiens and that interbred with modern humans.
Answer: D
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Allele pairs are most likely to assort independently of one another when
A. they control unrelated traits. B. they control related traits. C. they are on the same chromosome. D. they are sex linked. E. they are on different chromosomes.
As a microbiologist you have been asked to investigate the regulation of a novel gene in a bacterial species. Given what is known about bacteria, the logical place to begin your investigation is
A. transcriptional regulation. B. translational regulation. C. alternative splicing regulation. D. regulation by enhancer elements. E. regulation by general transcription factors. 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 gene regulation in bacteria? 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?
Which function is most likely controlled primarily by the gray-matter centers in the brain stem?
a. vomiting b. learning c. patellar tendon reflex d. writing
e. pain recognitionKin selection is a form of natural selection in which ____
a. dominant individuals share resources disproportionately with their close relatives b. individuals help relatives only if they are likely to return the favor in the future c. group members sacrifice their own reproductive success to help individuals who are not their direct descendants d. shared alleles for altruism are perpetuated if the assisted animals produce more offspring than the helper could have produced if he had not helped e. shared alleles for altruism are perpetuated if the helper produces more offspring than the relatives that he aids