A geneticist performed a dihybrid cross to prove which of these concepts?
A geneticist performed a dihybrid cross to prove which of these concepts?
The correct option is D independent assortment of alleles
Dihybrid cross is a cross between two individuals who differ in two observed traits that are controlled by two distinct genes. If the two parents are homozygous for both genes, then the F1 generation of offspring of the will be uniformly heterozygous for both genes and will display the dominant phenotype for both traits. Self-pollination or crossing of these F1 individuals will result in predictable ratios of both genotype and phenotype in the F2 generation. The phenotypic ratio of the F2 offspring of the cross is 9:3:3:1.
The Law of Independent Assortment states that alleles for separate traits are passed independently of one another.
The formation of different phenotypes in the F2 generation of the dihybrid cross proves that the allels of separate traits have been indeed assorted independently into different gametes.
Dominant and recessive alleles and the segregation of a pair of alleles during gamete formation (purity of gametes) can be proven with the help of a monohybrid cross.
independent assortment of alleles
Dihybrid cross is a cross between two individuals who differ in two observed traits that are controlled by two distinct genes. If the two parents are homozygous for both genes, then the F1 generation of offspring of the will be uniformly heterozygous for both genes and will display the dominant phenotype for both traits. Self-pollination or crossing of these F1 individuals will result in predictable ratios of both genotype and phenotype in the F2 generation. The phenotypic ratio of the F2 offspring of the cross is 9:3:3:1.
The Law of Independent Assortment states that alleles for separate traits are passed independently of one another.
The formation of different phenotypes in the F2 generation of the dihybrid cross proves that the allels of separate traits have been indeed assorted independently into different gametes.
Dominant and recessive alleles and the segregation of a pair of alleles during gamete formation (purity of gametes) can be proven with the help of a monohybrid cross.
