Bozeman Science
Bozeman Science: Genotypes and Phenotypes
Paul Andersen explains how changes in the genotype of an individual can affect the phenotype. He begins with genotype:phenotype::letters:story analogy. He explains how mutations can be neutral, beneficial or harmful. He also explains how...
Bozeman Science
Bozeman Science: Genotype Expression
Paul Andersen explains how genotypes can be expressed or not based on changes in the environment. He starts with a brief description of the Himalayan rabbit and how melanin production can be disrupted by high temperature. He explains how...
Sophia Learning
Sophia: Traits: Lesson 1
This lesson will explain how traits are passed down by alleles, and that one particular genotype determines one particular phenotype. It is 1 of 3 in the series titled "Traits." [1 min. 8 sec.]
Sophia Learning
Sophia: Types of Traits: Lesson 1
This lesson will explain that genotypes can be either homozygous or heterozygous. It is 1 of 4 in the series titled "Types of Traits." [2:15]