How do you determine the number of phenotypes

This gives you the total number of predicted offspring.The usual procedure is to impregnate filter paper with a dilute solution of ptc (about 0.5 to 1 gram per litre), allow it to dry, then place a bit of the treated paper on the tip of the tongue.1/4 purple & shrunken (blue), 2/4 purple & smooth (red) and 1/4 yellow & smooth (green).Before sharing your knowledge on this site, please read the following pages:Phenotype simply refers to an observable trait.

And so it's an observable type of an organism, and it can refer to anything from a common trait, such as height or hair color, to presence or absence of a disease.How many alleles does an off.There is variation in natural populations.For the observed number (column 2), enter the number of each grain phenotype counted on the ear of corn.Environment (that means for example changing your hair color or living in a sunny place) and the genetics your parents gave you.