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Title: In humans, a hypothetical trait is under the control of a single gene, A. Post by: jestevez13 on Oct 25, 2014 In humans, a hypothetical trait is under the control of a single gene, A. Four alleles have been found: A1, which is dominant to all others; A2, which is dominant to A3 and A4, which are codominant.
If gene A is on an autosome, how many different genotypes are possible? If gene A is on an autosome, how many different phenotypes are possible? If gene A is on the X, how many different genotypes are possible? If gene A is on the X and homozygous and hemizygous genotypes have different phenotypes, how many different phenotypes are possible? Any help explaining these would be really appreciated! Thank you!! |