Dominant & Recessive Genes: Lesson for Kids


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What is TRUE about alleles?

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1. Pea plants can have wrinkled or round peas. The allele for round pea shape is DOMINANT, and the allele for wrinkled pea shape is RECESSIVE. If a pea plant has one dominant allele and one recessive allele, what will its peas look like?

2. Recessive alleles are _____.

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About This Quiz & Worksheet

Make sure you fully understand what an allele is and how dominant and recessive traits are expressed, or become useful products. See if you can define key terms and show which trait would be expressed using practice problems.

Quiz & Worksheet Goals

Use this quiz to check your understanding of:

  • What an allele is
  • The difference between dominant and recessive alleles
  • What conditions allow recessive alleles to express themselves

Skills Practiced

  • Problem solving - use your new knowledge to tell what trait will be expressed, based on dominant and recessive alleles present
  • Defining key concepts - be sure you can accurately define key terms, such as allele, dominant, and recessive
  • Knowledge application - apply your new understanding of how alleles are either dominant or recessive to find traits, or features, that are dominant or recessive

Additional Learning

If you want to know more about this topic, read the lesson titled Dominant & Recessive Genes: Lessons for Kids. You can learn new and interesting concepts, such as:

  • Where alleles come from
  • Common human dominant and recessive traits
  • How many recessive or dominant alleles are needed for a trait to express
  • Examples of traits in other species