Early on in this chapter, we learned that evolution refers to descent with modification over generations. Geneticists, however, have an even more specific definition of evolution:
A. directional selection of the fittest alleles in a breeding population.
B. a change in gene frequency; that is, in the frequency of alleles in a breeding population from generation to generation.
C. a change in the gene frequency within the DNA of a single individual organism.
D. the survival of the chemically fittest allele in the gene pool.
E. a change in gene frequency caused by either chromosomal rearrangement or recombination.
Answer: B
You might also like to view...
The large-scale meatpacking industry has generally had a positive impact on the environment
Indicate whether the statement is true or false
The worldview of a group or society, encompassing their understanding of the universe, their origins and existence, and nature is referred to as:
A. histology. B. ontology. C. cosmology. D. chronology.
The remains of Kennewick Man:
A. were ruled to be returned to tribal groups. B. were buried at the request of Native American groups. C. were ruled to be available for scientific inquiry. D. are being housed at Harvard University. E. are still tied up in the legal system.
The organic analogy of a culture is an example of the characteristic that
a. cultures are constantly changing. b. cultures are adaptive and maladaptive. c. cultures are generally interconnected. d. culture influences biological processes. e. there are cultural universals.