1.What are the phenotypes of the parents of the corn dihybrid cross described above?2. What are the possible genotypes of the parent gametes of the corn dihybrid cross described above?3.What is the phenotype of the F1 generation of the corn dihybrid cross described above? 1.3 Dihybrid cross (Experiment 2)n the second experiment, we will study the result obtained from a dihybrid cross. A dihybrid cross is across between two different lines (varieties, strains) that differ in two observed traits. In the nameDihybrid cross", the "di" indicates that there are two traits involved (in our example designated R and Su),the "hybrid" means that each trait has two different alleles (in our example R and r, or Su and su), and"cross" means that there are two individuals who are combining or "crossing" their genetic information. Inour example, a pure strain of corn producing purple-starchy kernels (RR SuSu) is crossed with a purestrain producing yellow-sweet (rr susu). The starchy seeds are smooth, the sweet seeds are wrinkled. Theresulting F1 ears all bear purple-starchy (smooth) kernels. Plants that are heterozygous for two traits arecalled dihybrids. When the F1 is self-pollinated, the resulting F2 generation contains various combinations(Figure 11.4).Figure 11.4: Dihybrid crossThe rules of meiosis, as they apply to the dihybrid, are codified in Mendel's first law and Mendel's secondlaw, which are also called the Law of Segregation and the Law of Independent Assortment, respectively(Table 11.1). For genes on separate chromosomes, each allele pair showed independent segregation. Ifthe first filial generation (F1 generation) produces four identical offspring, the second filial generation,which occurs by crossing the members of the first filial generation, shows a phenotypic (appearance) ratioof 9:3:3:1, where:• the 9 represents the proportion of individuals displaying both dominant traits• the first 3 represents the individuals displaying the first dominant trait and the second recessive trait• the second 3 represents those displaying the first recessive trait and second dominant trait• the 1 represents the homozygous, displaying both recessive traits.39°F Mostly cloudy M n#3- Google Xb Answered: 1.What are the possib X611 Mendelian Genetics | Laborate Xhybrnid-cross-experiment-2Figure 11.4: Dihybrid crossThe rules of meiosis, as they apply to the dihybrid, are codified in Mendel's first law and Mendel's secondlaw, which are also called the Law of Segregation and the Law of Independent Assortment, respectively(Table 11.1). For genes on separate chromosomes, each allele pair showed independent segregation. Ifthe first filial generation (F1 generation) produces four identical offspring, the second filial generation,which occurs by crossing the members of the first filial generation, shows a phenotypic (appearance) ratioof 9:3:3:1, where:• the 9 represents the proportion of individuals displaying both dominant traits• the first 3 represents the individuals displaying the first dominant trait and the second recessive trait• the second 3 represents those displaying the first recessive trait and second dominant trait• the 1 represents the homozygous, displaying both recessive traits.

Name: 1.What are the phenotypes of the parents of the corn dihybrid cross de
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Description: 1.What are the phenotypes of the parents of the corn dihybrid cross described above?2. What are the possible genotypes of the parent gametes of the corn dihybrid cross described above?3.What is the phenotype of the F1 generation of the corn dihybrid

The phenotype represents the morphological expression of the genes. Genes and their alleles present in the genome of an organism make its genotype. In a dihybrid cross, the inheritance of two different genes is studied. Answer 1. In the given cross the corn plant producing purple starchy kernels (RRSuSu) is crossed with pure strain yellow sweet kernels (rrsusu). So, the phenotype of the RRSuSu parent plant: purple starchy or purple smooth kernels. The phenotype of rrsusu parent plant: yellow sweet kernels. Answer 2: Gametes produced by RRSuSu parent plants= RSu Gametes produced by rrsusu parent plant= rsu Answer 3: In the given cross, purple starchy kernels are dominant over yellow sweet kernels. So, the cross between pure strain parents with genotype RRSuSu and rrsusu would produce the F1 progeny with genotype RrSuSu. The phenotype of RrSuSu F1 progeny is Purple-starchy (smooth) kernels.