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Q. Glucose (C6H12O6) can survive as both an open-chain form and a closed-ring form. Before 1900, glucose was only thought to happen as an open chain. Now we know that over 99 percent of the time, glucose occurs in the closed-ring form. What probable difference between these forms would give […]

Color of fruits in summer squash is determined by two genes. Allele Y (dominant) of the first gene determines the yellow color, while alleley (recessive) determines the green color. These two colors can develop only if a recessive allelew of the second gene is also present. If a dominant allele […]

You have formulated a hypothesis: “Mangoes contain more vitamin C than oranges.” To test this hypothesis you measure vitamin C levels in 20 oranges and 20 mangoes from trees that were grown in the same orchard under the same environmental conditions (temperature, rain, sunlight). Select all statements that are true […]

In the ABO blood system in humans, alleles A and B arecodominant, and both are dominant to the O allele. Give all of thepossible genotypes of a female with A-type and a male with B-typeblood. If the couple in a. had a child with O-type blood, give theconfirmed genotypes of […]