Your text discusses one of the most well-known examples in which human populations have evolved in response to selection imposed by changes in lifestyle
Specifically, this example has to do with a change toward the life-long production of an enzyme that allows humans to digest something our ancestors normally would have ingested only as infants. What is the name of this enzyme?
lactase
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An alteration occurs during the formation of a dikaryotic cell, such that it has twice the number of nuclei compared to a normal dikaryotic cell. Only the number of nuclei changes; the type of nuclei remains the same. This altered cell is most accurately described as having
A. two haploid nuclei. B. two diploid nuclei. C. four diploid nuclei D. has four haploid nuclei. E. two haploid nuclei and two diploid nuclei.
Bioluminescent signals that fireflies and certain fishes send to distant receivers in the dark are classified as ____
signals.
a. tactile b. visual c. chemical d. electrical e. mechanical
________ is used to track the outbreak of infectious diseases.
A) Reverse vaccinology B) Genome sequencing C) Vaccination D) Immunotherapy
A microtome is used to
A) view microscopic organisms. B) slice thin sections of specimens. C) focus short wavelengths of light. D) manipulate tiny objects. E) dissect cellular organelles.