Answer:
Dominant Allele or Factor
- It can express itself in the presence as well as absence of its recessive allele.
- It codes for a complete, functional polypeptide (enzyme) that expresses it fully.
Recessive Allele or Factor
- It can express in the absence but not in the presence of its dominant allele.
- It codes for incomplete, non-functional poly- peptide (enzyme) which fails to express it in heterozygous condition.