Microbial diversity is thought of in terms of phylogenetic diversity and functional diversity because
A) similar functional traits are often found in divergent phylogenetic groups.
B) phylogenetic diversity dictates functional diversity in microbes.
C) functional diversity only pertains to functions that are not phylogenetic.
D) similar phylogenetic groups almost always have similar functional traits.
Answer: A
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In the sweet pea crossing experiment by Bateson and Punnet, the F2 generation had many more offspring with the phenotypes of purple flowers P, long pollen L and red flowers p, round pollen l than expected from independent assortment. This is because
A. In these sweet peas, there are always more PL gametes than there are pl gametes. B. In sweet peas, the alleles for flower color and pollen shape are on the same chromosome. C. There were few recombination events between these genes during meiosis. D. Flower color and pollen shape are within the same linkage group. E. All of these are correct.
A high concentration of H+ in the thylakoid compartment provides potential energy for the ____ by ____
a. breakdown of water; oxidation b. production of ATP; ATP synthases c. reduction of NADP+; an electron transfer chain d. production of sugars; the light-independent reactions e. production of O2; photolysis
Which part of the sperm contains the chromosomes?
A. flagella B. tail C. middle piece D. cell membrane E. head
One of the most common brain injuries is
a. epilepsy. b. encephalitis. c. meningitis. d. concussion. e. Alzheimer's disease.