A phylogenetic tree grouping that consists of a common ancestor and all of its descendants is known as a ________ group
A) monophyletic
B) paraphyletic
C) polyphyletic
D) polytomy
A
You might also like to view...
An episome is
A. a plasmid that can make bacterial cells resistant to antibiotics. B. a plasmid that gives bacteria the ability to degrade toluene. C. a plasmid that can integrate into the bacterial genome. D. a plasmid that can turn a bacteria that is harmless into a strain that can cause disease. E. a plasmid that gives bacteria the ability to exchange DNA with another bacterial cell.
In order to get around the lack of ability of prokaryotes to remove introns from precursor RNA, it may be necessary to
A. use the DNA directly. B. use the DNA after it has been processed. C. use different promoters. D. turn mRNA into cDNA. E. use the DNA directly AND use the DNA after it has been processed.
The correct descending order of classification is
a. genus >> species >> order >> kingdom >> phylum >> class >> family. b. class >> order >> kingdom >> phylum >> species >> genus >> family. c. class >> kingdom >> order >> phylum >> genus >> species >> family. d. kingdom >> phylum >> class >> order >> family >> genus >> species. e. phylum >> kingdom >> class >> order >> family >> genus >> species.
Receptor potentials may generate action potentials in the receptor cell itself, or they may cause ________ that stimulates an associated neuron to generate action potentials
A) an increase in blood flow B) an influx of Cl- C) a change in pressure D) the production of glucose E) the release of neurotransmitter