Can someone explain the diff btw genotypic and phenotypic ratios?

Answer 1

gentoype refers to what genes the organisms have, while phenotype refers to what gets expressed.

suppose you had 4 individuals that were all heterozygous for a dominant traight, the genotypic ratio would be 4:0 heterozygous and the phenotypic ration would be 4:0 for the dominant trait

suppose you had 2 heterozygous individuals and 1 homozygous dominant and 1 homozygous recessive, then the genotypic ratio would be 1:2:1 but the phenotypic ratio would be 3:1

Answer 2

genotypes are the genes that the person( organism) has. Phenotypes are the traits that the person (organism) shows. In classical dominant/recessive inheritance, like brown and blue eyes, the genes may be B for brown and b for blue eyes. A genotype may be BB, bb, or Bb. The phenotype is whether the eyes are blue or brown. Because brown B is dominant, BB and Bb (genotype) persons will have brown (phenotype) eyes. bb (genotype) persons will have blue (phenotype) eyes. Two parents both bb will have bb genotypes and so blue eyed childrten (phenotype). Two parents both BB will have brown-eyes children. If a BB marries a bb, then the genotypes of children will be Bb and brown-eyed. If two Bb's marry, then the ratio will be BB Bb bB bb ON AVERAGE as to genotype. (Three brown-eyed children for every blue-eyed one.) Averages mean nothing when it comes to individuals. That same couple could have 10 blue-eyed children, and that's just the way it comes out. If a BB marries a Bb, then it's BB Bb BB bB, all brown eyes.

Answer 3

Genotype is like Bb or bb or BB
Phenotype is like Black or brown