Genetics and Punnett Square YouTube Link: https://youtu.be/n55mxURQWlE Heredity How are traits passed from parents to offspring? A trait is a characteristic such as color or size that is inherited by...

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Genetics and Punnett Square YouTube Link: https://youtu.be/n55mxURQWlE Heredity How are traits passed from parents to offspring? A trait is a characteristic such as color or size that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. We represent these gene pairs by writing a combination of two capital or lowercase letters. For example, if one parent contributes a gene for blue eyes (C), and the other parent contributes a gene for brown eyes (c), then we write the offspring's eye color trait as Cc. This combination of the two genes that determine the trait is called a genotype. Each letter in a gene pair stands for one form of the trait. The forms of a trait are called alleles. In this example, the alleles are blue eye color and brown eye color. The two types of alleles are dominant and recessive. A dominant allele is written as a capital letter, and a recessive allele is written as a lowercase letter. If a gene pair contains a dominant allele, then the offspring will show this dominant trait. Recessive alleles can only show up when there is no dominant allele present to suppress them. The form that shows up is called a phenotype. In this Virtual Lab you will use a Punnett square to find possible gene combinations and to create a fictitious animal. Objectives: · Identify the phenotypes of offspring from a genetic cross. ‡ · Use Punnett squares to identify the outcomes of genetic crosses. Video Procedure: 1. Watch the Video 2. Answer the following Questions: a. What is the difference between a genotype and a phenotype? b. How are the alleles and traits related? Explain using an example c. In pea plants, purple flowers color (P) is a dominant allele, while white flower color (p) is recessive allele. If a pea plant has the genotype Pp, what is its phenotype? Explain your answer 3. Fill in the following for Animal 1 Trait Selected Genotype Selected Phenotype Eyes Ears Nose Mouth Fur Feet 4. Fill in the following for Animal 2 Trait Selected Genotype Selected Phenotype Eyes Ears Nose Mouth Fur Feet 5. Fill in the following for animal 3 Trait Selected Genotype Selected Phenotype Eyes Ears Nose Mouth Fur Feet 6. Do a punnet Square for the eyes given the genetic code “Ee x ee” How Mutations Work For this assignment, complete the worksheet on the following page. Submit as directed by your instructor. Grading Criteria Basic Requirements (the assignment will not be accepted or assessed unless the follow criteria have been met): · All five questions are answered. · The answers to each question are thorough and correct. Rubric: How Mutations Work Outcome: Describe the conversion of DNA to RNA to proteins Criteria Ratings Pts Recognize the impact of DNA mutations. Answered all 5 questions with complete sentences. 5.0 pts Answered 4 out of the 5 questions with complete sentences. 4.0 pts Answered 3 or fewer questions, or did not answer questions with complete sentences. 0.0 pts 5 pts Summarize the process of genetic translation. Answered 4-5 of the questions thoroughly and correctly. 5.0 pts Answered 2-3 of the questions thoroughly and correctly. 4.0 pts Answered less than 2 questions correctly, or did not expand upon written ideas. 0.0 pts 5 pts Total points: 10 Attribution CC LICENSED CONTENT, ORIGINAL · Authored by: Lumen Learning License: CC BY: Attribution CC LICENSED CONTENT, SHARED PREVIOUSLY · Differentiated Mutation Worksheet. Authored by: Ppickwell. Located at: https://www.tes.com/teaching-resource/differentiated-mutation-worksheet-11646396 License: CC BY-SA: Attribution-ShareAlike Normal DNA sequence: Sickle cell DNA sequence: Sickle-cell anaemia. DNA Mutations What is the difference between sickle-cell blood cells and normal blood cells? What is the difference between sickle- cell haemoglobin and normal haemoglobin? What is the difference between sickle- cell amino acid sequence and normal amino acid sequence? What is the difference between sickle-cell DNA sequence and normal DNA sequence? Use all of this to explain in your own words what a mutation is and how it can cause a genetic disease. Normal DNA sequence: Sickle cell DNA sequence: Sickle-cell anaemia. DNA Mutations What is the difference between sickle-cell blood cells and normal blood cells? What is the difference between sickle- cell haemoglobin and normal haemoglobin? What is the difference between sickle- cell amino acid sequence and normal amino acid sequence? What is the difference between sickle-cell DNA sequence and normal DNA sequence? Use all of this to explain in your own words what a mutation is and how it can cause a genetic disease.