The Guthrie test is used to screen all newborns in the United States for cystic fibrosis
Indicate whether the statement is true or false
FALSE
Explanation: This test is used to screen for phenylketonuria, or PKU.
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For each pound of shrimp caught in the American fishery, how many pounds of other fish are discarded from the catch?
a. 2 pounds. b. 5 pounds. c. 10 pounds. d. 15 pounds. e. 25 pounds.
Two species of birds compete for the same size of seed eventually develop different beak sizes that allow them to compete for different sizes of seeds. What has occurred?
a. competitive exclusion only b. character displacement only c. directional selection only d. competitive exclusion and character displacement e. directional selection and character displacement
The nuclear membrane re-forms during
a. anaphase. b. metaphase. c. interphase. d. prophase
HIV has 9 genes in its RNA genome. Every HIV particle contains two RNA molecules, each molecule containing all 9 genes. If, for some reason, the two RNA molecules within a single HIV particle do not have identical sequences, then which of these terms can be applied due to the existence of the non-identical regions?
A) homozygous B) gene variability C) nucleotide variability D) average heterozygosity E) all except A