The production of random evolutionary changes in small breeding populations is known as
a. gene flow.
b. genetic drift.
c. disruptive selection.
d. mutation.
e. natural selection.
B
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Reproduction by cell division:
A. results in two daughter cells that are genetically identical. B. is asexual reproduction. C. persists in mature plant cells for continued growth. D. continues in mature adult humans to replace damaged and worn-out cells. E. All of these choices are correct.
SNPs within a gene called FOXO correlate with increased longevity in humans. You are a researcher in a lab and wish to determine if you possess this SNP. Which of the following techniques would allow you to accomplish this?
A. genotyping microarray B. gel electrophoresis C. copy number variants D. Southern blot E. None of the answer options is correct.
Of the following, which group exhibits a diverse morphology, forming unicells, filaments, and sheets?
a. diatoms b. euglenoids c. green algae d. brown algae e. dinoflagellates
Crude oils containing ________ are called “sour” and may be naturally corrosive because of ________
a. fermentative bacteria / acid production b. more than 0.5 percent sulfur / H2S that is present c. high levels of organic acids / an elevated pH d. O2 / production of peroxides