In a random screening of athletes at a recent event, a runner was disqualified for testing positive for an injected form of erythropoietin. Which of the following is a consequence of extra erythropoietin in the circulatory system?
A) More red blood cells B) A low white blood cell count
C) "Thin" blood that does not clot efficiently D) Low blood pressure
A
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A triploid individual _____
A) is unable to undergo normal meiosis B) is unable to undergo mitosis C) produces offspring with an even number of chromosome sets (for example, tetraploid, hexaploid) D) has an additional stage in meiosis (meiosis I, meiosis II, and meiosis III)
The theory that hunger and satiety are regulated by a blood glucose set point is the __________ theory.
Fill in the blank(s) with the appropriate word(s).
Labrador retriever's fur color is controlled by two alleles, E and B. Any dog with the ee__ genotype develops into a yellow lab, while B_E_ dogs become black labs and bbE_ dogs become chocolate labs. This is an example of _____.
A. epistasis B. codominance C. incomplete dominance D. linkage
In genetics, a chi-square test can be used to determine ____
a. whether an organism with a dominant phenotype is homozygous or heterozygous b. whether an allele exhibits complete or incomplete dominance
c. what the predicted outcome of a dihybrid cross will be d. how closely actual results of a cross match the expected results e. whether a trait is determined by one gene or many genes