What is a phenotypic ratio?

Answer 1

A ratio that shows the different outcomes you can get from a genetic cross.

A ratio that shows the varied outcomes that results from a genetic cross and is based on physical appearance alone. For example yellow flowers, round seeds, brown hair, green eyes etc.

The genetic make up of an organism is called genotype and the external appearance or expression of the genetic make up is called phenotype (Color, height, shape etc.). The ratio indicates the number of heterozygotes and homozygotes with reference to the genotypic ratio and to the number of phenotypes expressed as phenotypic ratio. The concept was given by Sir Gregor Johann Mendel, Father of Genetics who worked on pea plant with reference to 7 different characters. The result obtained for a cross between a single character is called monohybrid cross and the ratio is referred to as monohybrid ratio which is 1:2:1 for genotypic ratio and 3:1 for phenotypic ratio.

in the dihybrid cross for the phenotypic ratio it is 9:3:3:1.

Answer 2

Its basicly just telling telling us how many are tall or short or say they use a different phenotype like brown eyes or blues you take that and look at the punnett square and she how many of them are gonna have brown eyes instead of blue eyes ! :)