4. Genetics & Environmental Interactions

By the end of this section you should be able to:

1. Explain how ABO blood typing is an example of multiple alleles.

Essential Vocabulary

Multiple allelesBlood type

2. Complete a Punnett square for a cross of two different blood types if given the parent’s genotypes.

Essential Vocabulary

Punnett squareGenotype

3. Explain why polygenic inheritance results in a large variety of phenotypes.

Essential Vocabulary

Polygenic inheritancePhenotype

4. Explain how some genotypes, like heterozygous for sickle cell anemia, can have multiple phenotypes.

Essential Vocabulary

HeterozygousHomozygousCodominance Sickle cell anemiaMalaria

5. Describe environmental factors, such as diet and environmental exposure, and how they can influence the expression of traits, often leading to development of diseases (cancer, heart disease, diabetes).

Essential Vocabulary

Environmental exposure RadiationSunlightChemicals

6. Describe how the environment can influence the frequency of a trait within a population.

Essential Vocabulary

Natural selectionAllele frequency

The activities below should be used to review essential vocabulary

Use the following quizzes to test your knowledge of essential vocabulary. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

LS3-4 Genetics and Environmental Interactions

This is a Content Quiz. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

This is a Skills Quiz to help you review and apply science practices to the content from this module. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

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