Question

Difference between complete and incomplete dominance

Answer 1

No.	Complete dominance	Incomplete dominance
1.	Dominant trait is always dominant over the recessive trait.	Neither of the traits are completely dominant over the other.
2.	On crossing two homozygous parents for one or more pairs of contrasting characters, the F1 hybrid is always dominant. So called complete dominance.	On crossing two homozygous parents for one or more pair of contrasting characters, the F1 is intermediate between both the parents. Hence called incomplete dominance as dominance is not complete.
3.	Dominant allele is stronger than the recessive allele.	Both the alleles have equal strength. They express themselves incompletely.
4.	Example: Height of Pea plant, P1→ Tall Plant (TT) x Dwarf Plant (tt)   F1→        Tt          Tall Plant	Example: flower colour in Antirrhinum majus (Snapdragon) P1→Red flower (RR)  x White flower (rr)   F1 →      Rr          Pink flower