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Genetics: Understanding Traits, Genes, and Alleles - Episode 1, Exercises of Genetics

University of Charleston (UC)Genetics

A lesson plan for a genetics episode focusing on traits, genes, and alleles. It explains how genes encode proteins that produce various traits, the concept of alleles and their inheritance, and how genotype and phenotype are related. Students are encouraged to read an article, annotate it, and write a summary and reaction.

What you will learn

  • What is an allele and how is it inherited?
  • What is the difference between homozygous and heterozygous individuals?
  • How does the expression of dominant and recessive alleles impact the phenotype?
  • How does the genotype relate to the phenotype?
  • What is the role of genes in producing traits?

Typology: Exercises

2021/2022

Uploaded on 09/27/2022

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Series: Genetics
Season 2: Of Germs and Genes
Episode 1: Traits, Genes,
and Alleles
Objective: Infer an individual’s genotype based on their phenotype
Bell Ringer: Get the article from the front. Read and annotate
the article using your annotation key from your notebook. Write
a 1 paragraph summary and reaction using your annotations as a
guide
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Partial preview of the text

Download Genetics: Understanding Traits, Genes, and Alleles - Episode 1 and more Exercises Genetics in PDF only on Docsity!

Series: Genetics

Season 2: Of Germs and Genes

Episode 1: Traits, Genes, and Alleles Objective: Infer an individual’s genotype based on their phenotype Bell Ringer: Get the article from the front. Read and annotate the article using your annotation key from your notebook. Write a 1 paragraph summary and reaction using your annotations as a guide

I. Genes encode proteins that produce a diverse range of traits.

  1. An allele is any alternative form of a gene occurring at a specific location on a chromosome. a. Each parent donates one allele for every gene.
  1. An allele is any alternative form of a gene occurring at a specific location on a chromosome. a. Each parent donates one allele for every gene. b. Homozygous : two same alleles
  1. An allele is any alternative form of a gene occurring at a specific location on a chromosome. a. Each parent donates one allele for every gene. b. Homozygous : two same alleles c. Heterozygous : two different alleles
  1. An allele is any alternative form of a gene occurring at a specific location on a chromosome. a. Each parent donates one allele for every gene. b. Homozygous : two same alleles c. Heterozygous : two different alleles

A. Genes influence the development of traits.

  1. A genotype refers to the genetic makeup

A. Genes influence the development of traits.

  1. A genotype refers to the genetic makeup

Aa

Genotype:

A. Genes influence the development of traits.

  1. A genotype refers to the genetic makeup
  2. A ph enotype is the ph ysical expression of a trait

Aa

Genotype: Phenotype:

  1. Alleles can be represented using letters
  1. Alleles can be represented using letters a. Dominant: - CAPITAL LETTERS
  1. Alleles can be represented using letters a. Dominant: - CAPITAL LETTERS - Expressed when at least one allele is dominant: RR, or Rr

b. Recessive:

b. Recessive:

  • lowercase letters