What is the genotype of the parents of the corn dihybrid cross described above?What are the phenotypes of the parents of the corn dihybrid cross described above?What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? 11.3 Dihybrid cross (Experiment 2)In 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 name"Dihybrid cross", the "di" indicates that there are two traits involved (in our example designated R and S),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 traits11.3.1 Experimental procedures1. Carefully count the number of kernels of each phenotype appearing on a row of F2 ear. Tabulate theresults and determine the totals and total ratios in Table 11.3. Answered: 1.What are the possib xG What is a gene? What is an allel xX T Hb chapter 11 XRRRRrRrrrFigure 11.2: Punnett square for heterozygous cross11.2 Monohybrid cross (Experiment 1)A monohybrid cross is a mating between two individuals with different variations at one genetic trait ofinterest. The character(s) being studied in a monohybrid cross are governed by two or multiple variationsfor a single locus. A cross between two parents possessing a pair of contrasting characters is known asmonohybrid cross. To carry out such a cross, each parent is chosen to be homozygous or true breedingfor a given trait (locus) When a cross satisfies the conditions for a monohybrid cross, it is usuallydetected by a characteristic distribution of second-generation (F2) offspring that is sometimes called themonohybrid ratio.Generally, the monohybrid cross is used to determine the dominance relationship between two allelesThe cross begins with the parental (P) generation. One parent is homozygous for one allele, and the otherparent is homozygous for the other allele. The offspring make up the first filial (F1) generation. Everymember of the F1 generation is heterozygous and the phenotype of the F1 generation expresses thedominant trait. Crossing two members of the F1 generation produces the second filial (F2) generationProbability theory predicts that three quarters of the F2 generation will have the dominant allele'sphenotype. And the remaining quarter of the F25 will have the recessive allele's phenotype. Thispredicted 31 phenotypic ratio assumes Mendelian inheritance.In the first experiment, we will study the result obtained from a monohybrid cross. A strain of cornproducing pure purple kernels (RR) is crossed with a strain producing pure yellow kernels (). Purple isdominant with the resulting F1 ears all bearing purple kernels. These plants that are heterozygous for asingle trait are called monohybrids When the F1 is self-pollinated, the resulting F2 ears bear both purpleand yellow kernels (Figure 11 3).UltraHealingPure

Name: What is the genotype of the parents of the corn dihybrid cross describ
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Description: What is the genotype of the parents of the corn dihybrid cross described above?What are the phenotypes of the parents of the corn dihybrid cross described above?What are the possible genotypes of the parent gametes of the corn dihybrid cross describe

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What is the genotype of the parents of the corn dihybrid cross described above?What are the phenotypes of the parents of the corn dihybrid cross described above?What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? 11.3 Dihybrid cross (Experiment 2)In 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 name&#34;Dihybrid cross&#34;, the &#34;di&#34; indicates that there are two traits involved (in our example designated R and S),the &#34;hybrid&#34; means that each trait has two different alleles (in our example R and r, or Su and su), and&#34;cross&#34; means that there are two individuals who are combining or &#34;crossing&#34; 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 traits11.3.1 Experimental procedures1. Carefully count the number of kernels of each phenotype appearing on a row of F2 ear. Tabulate theresults and determine the totals and total ratios in Table 11.3. Answered: 1.What are the possib xG What is a gene? What is an allel xX T Hb chapter 11 XRRRRrRrrrFigure 11.2: Punnett square for heterozygous cross11.2 Monohybrid cross (Experiment 1)A monohybrid cross is a mating between two individuals with different variations at one genetic trait ofinterest. The character(s) being studied in a monohybrid cross are governed by two or multiple variationsfor a single locus. A cross between two parents possessing a pair of contrasting characters is known asmonohybrid cross. To carry out such a cross, each parent is chosen to be homozygous or true breedingfor a given trait (locus) When a cross satisfies the conditions for a monohybrid cross, it is usuallydetected by a characteristic distribution of second-generation (F2) offspring that is sometimes called themonohybrid ratio.Generally, the monohybrid cross is used to determine the dominance relationship between two allelesThe cross begins with the parental (P) generation. One parent is homozygous for one allele, and the otherparent is homozygous for the other allele. The offspring make up the first filial (F1) generation. Everymember of the F1 generation is heterozygous and the phenotype of the F1 generation expresses thedominant trait. Crossing two members of the F1 generation produces the second filial (F2) generationProbability theory predicts that three quarters of the F2 generation will have the dominant allele'sphenotype. And the remaining quarter of the F25 will have the recessive allele's phenotype. Thispredicted 31 phenotypic ratio assumes Mendelian inheritance.In the first experiment, we will study the result obtained from a monohybrid cross. A strain of cornproducing pure purple kernels (RR) is crossed with a strain producing pure yellow kernels (). Purple isdominant with the resulting F1 ears all bearing purple kernels. These plants that are heterozygous for asingle trait are called monohybrids When the F1 is self-pollinated, the resulting F2 ears bear both purpleand yellow kernels (Figure 11 3).UltraHealingPure

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A cross which includes the analysis of two independent characters is called as dihybrid cross. The…

What is the genotype of the parents of the corn dihybrid cross described above? What are the phenotypes of the parents of the corn dihybrid cross described above? What are the possible genotypes of the parent gametes of the corn dihybrid cross described above?