Incomplete dominance can occur because neither of the two alleles is fully dominant over the other, or because the dominant allele does not fully dominate the recessive allele. ... Some of their offspring (the F2 generation) will inherit two R alleles, some will inherit two r alleles, and some will inherit both.
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Answer:
Incomplete dominance can occur because neither of the two alleles is fully dominant over the other, or because the dominant allele does not fully dominate the recessive allele. ... Some of their offspring (the F2 generation) will inherit two R alleles, some will inherit two r alleles, and some will inherit both.