An advantage to studying linkage disequilibrium is that ________
A) it provides another tool enabling the reconstruction of the history of genes and populations
B) it provides clear evidence of speciation events
C) it can be used to identify alleles that have been recently selected by natural selection
D) Both A and C.
D
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Which of the following will grow in broth with 6.5% salt?
A. Lactococcus lactis B. Streptococcus mutans C. Enterococcus faecalis D. All of the choices are correct.
Which of the following statements concerning metagenomic sequencing is incorrect?
A. Software aligns sequences and assemble large portions of genomes. B. The samples are subject to polymerase chain reaction for amplification. C. Proteins are extracted from an environment, fragmented, and adaptors are added. D. The sequences of the amplified fragments are determined by next-generation methods.
A genomic library consists of fragments of all of the DNA:a
that occurs in one species. b. contained in one chromosome. c. that would be found in a typical cell of a particular organism. d. in a recombinant gene. e. that codes for functional enzymes in a typical cell of a particular organism.
A cell that uses an organic carbon source and obtains energy from light would be called a
A) photoheterotroph. B) lithoautotroph. C) photoautotroph. D) chemoheterotroph. E) chemoautotroph.