Inheritance

Learning Objectives

  • Explain the relationships between a genotype and a phenotype

  • Draw a Punnett Square to determine potential offspring genotypes and probabilities of inheritance from parent genotypes

Pre-Class Review

  1. False Statement Identification

    • Among the following statements, identify which is false:

      • a. Alleles are different versions of genes

      • b. Daughter cells from meiosis contain one allele of each gene

      • c. Alleles sort independently of each other during meiosis

      • d. Alleles are sequences of amino acids

  2. Compare and Contrast

    • Define and describe the differences between the following terms:

      • Gene

      • Allele

      • Genotype

      • Phenotype

      • Homozygous

      • Heterozygous

      • Dominant Allele

      • Recessive Allele

      • X-Linked

      • Y-Linked

In-Class Guide (Week 11 Tuesday, BISC207, Dr. DeVito)

  1. Drawing Punnett Squares

    • Fill in the Punnett Square for the following alleles:

      • Dominant Allele: G

      • Recessive Allele: g

    • Parent Genotypes: Heterozygous Parent (Gg) × Heterozygous Parent (Gg)

  2. Genotype Probability Calculation

    • What is the probability that an offspring will have the following genotypes?

      • a. GG - __

      • b. Gg -