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Analyzing Genetics With a Testcross

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

If I claim that a chinchilla has dark fur, what am I describing?

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1. How does a testcross work?

2. What sort of alleles define a heterozygous genotype?

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About This Quiz & Worksheet

Testcrosses can predict the results of genetic breeding. This quiz and worksheet combination will add to your understanding of the process by asking you about the methods of using a testcross and how genotypes can result in specific phenotypes.

Quiz & Worksheet Goals

In this combo of quiz and worksheet, you will be examined on:

  • The process of a testcross
  • Heterozygous genotypes
  • The results of potential genotype crosses

Skills Practiced

This quiz and worksheet helps you utilize these skills:

  • Information recall - remember what you have learned from the lesson on testcrosses and genetic analysis
  • Knowledge application - apply your knowledge of genetic analysis to identify the alleles that define a heterozygous genotype
  • Reading comprehension - ensure that you draw the most important information from the related lesson on genetics

Additional Learning

If you would like to learn more about testcrosses, you can view the lesson titled Analyzing Genetics With a Testcross. After watching the video, you can fulfill the following tasks:

  • Use Punnett squares
  • Explain dominant and recessive genes
  • Discover the result of an unknown genotype with a testcross
  • Define the term for the genetic makeup of a chinchilla
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