एक सामान्य मानव कायिक कोशिका में द्विगुणित (diploid) गुणसूत्रों की संख्या कितनी होती है?

When a red (RR) flower plant is crossed with a white (WW) flower plant, all the offspring exhibit pink flowers, suggesting that the red and white alleles exhibit:

When a red (RR) flower plant is crossed with a white (WW) flower plant, all the offspring exhibit pink flowers. This phenomenon indicates: