Evolution by natural selection was conceived and written about in the 1800s by ________
A) Alfred Russel Wallace
B) Charles Darwin
C) W. C. Wells
D) Patrick Matthew
E) All of the above
E
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Southern blot is a method for ____
a. amplifying DNA segments using cycles of denaturation, annealing to primers, and DNA polymerase-directed DNA synthesis b. transferring DNA fragments from a gel to a membrane filter and used in hybridization experiments c. determining the nucleotide sequence of a DNA molecule d. producing several clones from a single cell by placing the cell in a Petri dish and allowing it to go through several divisions e. detecting mutant genes or differences in the pattern of gene expression
Which of the following actions would increase your carbon footprint?
A) reusing or recycling items B) eating more vegetables and less meat C) eating more beef and less chicken D) walking instead of driving
Which of the following statements about genotypes and phenotypes is TRUE?
A) Matings between individuals with recessive phenotypes produce offspring with dominant phenotypes. B) Matings between individuals with dominant phenotypes cannot produce offspring with recessive phenotypes. C) Individuals with the same phenotype might have different genotypes. D) Individuals with the same genotype might have different phenotypes.
You are studying a plant with mutant, nonfunctional PIN proteins. Assuming this plant could otherwise develop normally, predict how you might expect this plant to respond to directional light.
A. The plant will move randomly. B. The plant will not move in response to light. C. The plant will bend away from the light. D. The plant will bend toward the light.