3. Probability & Inheritance Patterns

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

1. Explain how a genotype is used to determine an organism’s phenotype.

Essential Vocabulary

GeneAllele GenotypePhenotypeDominant Recessive HomozygousHeterozygous

2. Describe Mendel’s laws of inheritance.

Essential Vocabulary

Law of DominanceLaw of SegregationLaw of Independent Assortment

3. Use Punnett squares to demonstrate Mendel’s laws of inheritance.

Essential Vocabulary

Punnett squareProbabilityRatioPercentOffspring

4. Use Punnett squares to determine probable offspring genotype and phenotype ratios for the following situations: dominant-recessive, codominance, incomplete dominance, and sex-linked traits.

Essential Vocabulary

CodominanceIncomplete dominanceSex- linked inheritance

5. Use a pedigree to determine the inheritance pattern (codominance, incomplete dominance, dominant- recessive, sex-linked) of a trait.

Essential Vocabulary

pedigree

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.

LS3-3: Probability and Inheritance Patterns

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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