Question

In plain blue flower plants are crossed the offspring segregated 48 _ blue 14_ white _21 _ green plants what are the genotype of the parent

Answer 1

The parental plants must be heterozygous. If you cross two heterozygous plants, Aa x Aa, you will have three different possibilities for the offspring (AA, Aa, and AA). If Aa were pink flowers, the resulting blue flowers must have the genotype AA, or the recessive homozygous state.

actually this particular plant produces different colour flowers in different pH soil, I'm not sure but i think the blue ones are in acidic soil and the pink ones in alkaline. something to do with aluminum uptake. Mcgrumpy would know.