What is an Allele? What does it mean if an allele is described as being recessive? Custom Essay

1. What is an Allele? What does it mean if an allele is described as being recessive?
2. What is the phenotype ratio resulting from a heterzygous cross when the alleles involved are codominant? Genotype?
3.What is the phenotype ratio for a typical heterozygous cross (simple dominance)? Genotype?
4.If a gene has alleles that demonstrate incomplete dominance, what will the phenotype of a heterozygous individual be like?
5.Define the term: Phenotype What is its relationship to genotype?
6.The gene for blood type comes in IA,IB and i. What phenotypes and thier genotypes are possible from these multiple alleles?
7.What is the difference between alleles that demonstrate incomplete dominance and those that demonstrate codominance? Give and example of each
8.Define the term: Genotype. What is its relationship to homologous chromosomes?
9.Why are alleles carried on the sex chromosomes (specifically the X) chromosame not inherited in the same way as those genes on the the other chromosomes?

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