Heterozygotes

... are independently segregating, phenotypically dominant mutations that are homozygous lethals. In other words, they have a distinct phenotype as heterozygotes but are lethal as homozygous dominants. When Curly and Plum are separately crossed to wild-type flies and the F1 mutant progeny are intercrossed, ...

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... person still has normal red blood cell, but is better protected against malaria than a homozygote dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts off the homozygotes part and preserves heterozygote ...

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... person still has normal red blood cell, but is better protected against malaria than a homozygote dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts off the homozygotes part and preserves heterozygote ...

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... is "sickled" when not attached to oxygen. Infection of an RBC by malaria parasites deoxygenates the cell, sickles those hemoglobins (in heterozygotes, who have a decent percentage of sickle-cell hemoglobins in each cell), and the cell is processed as defective - that is, killed. I think ...

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... tall (T) is dominant to short (t), yellow (Y) is dominant to green (y), and round (R) is dominant to wrinkled (r). From a cross of two triple heterozygotes, what is the chance of getting a plant that is a. tall, yellow, round? (I got 27/64 for this) b. short, green, wrinkled? (I got 1/64 for ...

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