In the Four o Clock plant, a single locus controls flower color.$$ CRCR individuals are RED.$$ CRCW individuals are PINK.$$ CWCW individuals are WHITE.$$ Two pink P$1$ individuals are crossed.$$ The F$1$ offspring are counted, and raised to maturity.What is the probability that a pollen grain taken from one of the F$1$ contains the allele for white flowers?$\mathrm{.}251/161\mathrm{.}0\mathrm{.}50$