Which of the following is most likely to cause genetic changes in a population that make it better adapted to its environment?
A) nonrandom mating B) natural selection
C) genetic drift D) gene flow
Answer: B
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The tuberculin skin test looks to identify ________ specific to Mycobacterium tuberculosis
A) antibodies B) antigens C) delayed hypersensitive (DTH) TH1 cells D) delayed hypersensitive (DTH) TC cells
Marine biology is the study of:
a. the living organisms that inhabit the sea. b. the oceans and their phenomena. c. the oceans and living organisms. d. the chemical makeup of the oceans. e. biogeochemical processes.
A specific marker with a single peak indicates that the individual is ________ with respect to that particular STR marker
a. homozygous b. heterozygous
TRAIT SPECIESABCDE111011211010311100410000511100611011The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, while "1" indicates the derived condition. Based on this data, which species would be considered the outgroup?
A. 1 B. 2 C. 3 D. 4 E. 5