Four of the five answers listed below describe changes at the chromosomal level. Select the exception
a. base substitution
b. duplication
c. translocation
d. deletion
e. inversion
A
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The microbiologist receives a sputum specimen for culture in the microbiology laboratory. Upon receipt the microbiologist should:
a. complete the set-up of media for identifi-cation of pathogens. b. complete a direct Gram stain and prelimi-nary report. c. complete an abbreviated work-up of the specimen. d. complete a culture and definitive identifi-cation of pathogens.
Chihuahuas, Border Collies, and Great Danes (all domestic dogs) descend from the same wolf species and can still interbreed. These varieties were produced by
A) speciation. B) artificial selection. C) natural selection. D) genetic drift. E) inheritance of acquired traits.
Which form of speciation is thought to be most common?
A) allopatric speciation B) ecological speciation C) sympatric speciation D) haploploid speciation E) none of the above
Which type of mating system do most animals exhibit?
A. polygyny B. monogamy C. polyandry D. None of these choices are correct.