Question

How can two organisms have the same phenotype but different genotype

Answer 1

Same phenotype but different genotype is possible due to presence of dominant allele.

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Answer 2

Same phenotype but different genotype is possible due to presence of dominant allele. A person can have a dominant allele on both the homologous chromosomes (i.e. in double dose) while another person may have single dominant allele and a corresponding recessive allele

Step-by-step explanation: