What is the phenotype and genotype of F1 generation in monohybrid and dyhybrid??Give the answer in form of ratio. Please not in form of explanation or definitions...

The genotypic and phenotypic ratios will be 50:50 and 25:25:25:25 (i.e., 1:1 and 1:1:1:1), respectively.

Explanation:

A monohybrid cross is represented by crossing two individuals that have distinct alleles for the same locus (gene) of interest. In the F1 of a monohybrid cross, all the offspring will be heterozygous.  

A dihybrid cross is represented by crossing two individuals that have distinct alleles for two different loci (genes) of interest, which may be localized in the same (linkage of the two genes) or distinct chromosomes, and thereby affecting the proportions of progeny. Typically (when there is no linkage between genes), in the F1 of a dihybrid cross all the offspring will be dihybrids and the genotype will be double heterozygous.

i thinking chemical change

that scientist would be robert hooke