genotypic ratio and phenotypic ratio for monohybrid cross
Answers
Answer:
Explanation:
A monohybrid cross results in a phenotypic ratio of 3:1 (dominant to recessive), and a genotypic ratio of 1:2:1 (homozygous dominant to heterozygous to homozygous recessive). ... By the 10th generation, only two hybrids would remain for every 1023 individuals of each homozygous class.
Genotype is the genetic constitution of an individual whereas phenotype is the physical appearance or expression of a specific trait. ... So, genotypic ratio and phenotypic ratio are the two types of genetic ratios used to express the genotype and the phenotype of offspring from a genetic cross.
This 1:1:1:1 phenotypic ratio is the classic Mendelian ratio for a test cross in which the alleles of the two genes assort independently into gametes (BbEe × bbee).