Difference Between Genes & Alleles


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question 1 of 3

What is an allele?

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1. What is a gene?

2. What is meant by the term 'homologous chromosome'?

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About This Quiz & Worksheet

When it comes to genetics, it's important to understand the difference between genes and alleles. The questions in this quiz will ask you to define genetic terminology and apply your knowledge of these concepts to a practice problem.

Quiz & Worksheet Goals

You'll be challenged to:

  • Define allele, gene and chromosome
  • Understand the term homologous chromosome
  • Know what heterozygous means

Skills Practiced

You'll get practice applying the following skills:

  • Defining key concepts - ensure that you can accurately define alleles, genes and chromosomes
  • Knowledge application - use what you know about chromosomes to determine what a homologous chromosome is
  • Interpreting information - verify that you can read information regarding heterozygous alleles and understand what that means

Additional Learning

Read the related lesson called Difference Between Genes & Alleles to get more information on this concept. The lesson covers the following learning objectives:

  • Define heredity and homologous pairs
  • Understand the concept of gene expression
  • Know the difference between dominant and recessive alleles
  • Review the purpose and contents of DNA