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# Red flowers (dominant phenotype) are crossed with white flowers( recessive). The amount of essential oils extracted from red flowers is more than that of white. The resulting progency producing pink flowers with high amount of essential oils.This can be best explained as

( a ) if color is the phenotype, then is inncomplete dominance if amount of oil is considered as phenotype it is true dominance
( b ) if color is the phenotype, then is incomplete dominance if amount of oil is considered as phenotype it is co-dominance
( c ) if color is the phenotype, then is true dominance if amount of oil is considered as phenotype it is incomplete dominance
( d ) if color is the phenotype, then is codominance if amount of oil is considered as phenotype it is incomplete dominance

In case of dominance, the phenotype will express itself and in case of incomplete dominance, both the alleles are unable to express themselves and would result in an intermediate phenotype. Hence, as the resulting progency showed pink flowers, it is due to incomplete dominance and the production of high amount of essential oils is due to the dominant allele.
Ans: A
edited Nov 2, 2016