A mixture of vegetable oil and water will separate into layers because oil is ____ and forms ____
a. hydrophobic; nonpolar associations
b. hydrophilic; nonpolar associations
c. hydrophilic; polar associations
d. hydrophobic; polar associations
e. hydrophobic; ionic associations
A
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Gerard is a 10 year old boy in a family of five
To which member of his family would his MHC genes be the most the same?
a. his father, Donn b. his mother, Sabine c. his sister, Eliza d. his identical twin, Gerome e. his identical twin, Gerome, and his sister, Eliza, would have MHC genes equally the same as Gerard’s
A ____ is an example of a nonvascular plant.
A. liverwort B. rose C. red pine D. maiden hair fern
Which technique is used to help reduce experimenter bias?
A) Create experiments that are reproducible and repeatable. B) Control extraneous variables as much as possible. C) Include a control group in your experiment. D) Be aware of potential placebo effects. E) Keep the experimenter blind to the conditions in an experiment or its purpose.
Which of the following statements is false?
(a) A new RNA molecule can begin to be synthesized from a gene before the previous RNA molecule's synthesis is completed. (b) If two genes are to be expressed in a cell, these two genes can be transcribed with different efficiencies. (c) RNA polymerase is responsible for both unwinding the DNA helix and catalyzing the formation of the phosphodiester bonds between nucleotides. (d) Unlike DNA, RNA uses a uracil base and a deoxyribose sugar.