Apink flowered plant is crossed with a white flowered plant. show the punnet square. what is the probability of producing a pink flowered plant?

There is a 50% probability of producing pink flowers.

Explanation:

A dominant trait can be described as a trait that masks the effect of a recessive trait. A recessive trait can be described as a trait that is suppressed by a dominant trait.

Homozygous means that both alleles of a gene are similar whereas heterozygous means that the alleles of a gene are different.

Let's consider pink to be a dominant trait and white to be a recessive trait. Consider the pink flower to be heterozygous (RR') and the white flower to be recessive and hence homozygous (R'R'). When these plants are cross-bred, there will be a 50% chance that the offsprings will be white coloured and 50% chance that the offsprings will be heterozygous and will have pink colour.

most community's take hundreds of years to become stable

not too sure but maybe in the hot springs.