### Studying Ossicone Length in GiraffesIn this educational module, we will explore the genetic basis of ossicone (horn) length in giraffes. Specifically, we will examine the inheritance pattern of a gene that controls this trait.#### Background InformationThe gene in question has two alleles:- **L**: The wild type allele, which results in long ossicones.- **l**: The mutant allele, which results in short ossicones.The wild type allele (**L**) is dominant over the mutant short-ossicone allele (**l**). However, the **L** allele exhibits incomplete penetrance, with only 60% of the individuals who carry the allele expressing the long ossicone phenotype.#### Genetic CrossConsider a genetic cross between a long-horn heterozygous giraffe (**Ll**) and a short-horn giraffe (**ll**). #### Predicting Phenotypic Progeny and Their FrequenciesUsing a Punnett square, we predict the genotypic ratio:| Parent Genotype | ll | Ll ||-----------------|------|------|| Phenotype | Short| Long || Frequency | 50% | 50% |Given the penetrance of the **L** allele (60%), the phenotypic ratio among the offspring is adjusted as follows:1. **Ll genotype (50% of offspring)**: - 60% show long ossicones = 0.60 * 0.50 = 30% - 40% show short ossicones = 0.40 * 0.50 = 20%2. **ll genotype (50% of offspring)**: - 100% show short ossicones = 50%Summing up the probabilities:- **Long-ossicone giraffes**: 30%- **Short-ossicone giraffes**: 20% (from **Ll**) + 50% (from **ll**), totaling 70%Therefore, the phenotypic progeny classes expected and their frequencies are:- **Long-ossicone giraffes**: 30%- **Short-ossicone giraffes**: 70%

Name: ### Studying Ossicone Length in GiraffesIn this educational module, w
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: ### Studying Ossicone Length in GiraffesIn this educational module, we will explore the genetic basis of ossicone (horn) length in giraffes. Specifically, we will examine the inheritance pattern of a gene that controls this trait.#### Background Inf