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Test: GRE Subject Test: Biochemistry, Cell, and Molecular Biology
1. | In a species of ant, black coloration is dominant to white. A scientist is operating under the assumption that this gene follows basic Mendelian principles; however, after crossing two heterozygotes he obtained a ratio of 2:1 of dominant to recessive offspring. Which of the following could explain this result? |
The alleles display codominance
The homozygous dominant phenotype is lethal
The alleles display incomplete dominance
The homozygous recessive phenotype is lethal
Alexia
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University of Missouri-Columbia, Bachelor of Science, Biochemistry. Washington University in St Louis, Master of Science, Bio...
Malcolm
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University of California-Santa Cruz, Bachelor of Science, Cellular and Molecular Biology. University of Southern California, ...
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