Can You Pass This Quiz on Test Cross (Genetics)?

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  • 1/10 Questions

    Who discovered test cross in genetics?

    • Gregor Mendel
    • Charles Darwin
    • William Harvey
    • It's not clear.
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About This Quiz

A test cross is a genetic technique performed to determine the genotype of a dominant parent if it is heterozygous or homozygous dominant. Take the quiz below and check your knowledge of the same. You must have read about test crosses in your biology textbooks. Do you know test crosses can determine the genotype of the original person? What are the disadvantages of it? Who discovered the test cross? Proceed with the quiz below if you have all these answers.

Can You Pass This Quiz On Test Cross (Genetics)? - Quiz

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  • 2. 

    Which of the following is an example of a homozygous parent?

    • TT

    • Tt

    • Dd

    • All of the above

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  • 3. 

    Individuals with homozygous dominant alleles have

    • One dominant allele

    • Two dominant alleles

    • Three dominant alleles

    • Four dominant alleles

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  • 4. 

    What does the term 'phenotype' refer to?

    • Observable traits of an individual.

    • The unique sequence of DNA.

    • A pair of chromosomes set located in a particular location.

    • All of the above

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  • 5. 

    What do heterozygous individuals have?

    • One dominant allele

    • One recessive allele

    • It's not mentioned anywhere.

    • Both A and B

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  • 6. 

    What is an allele?

    • A pair of the chromosome.

    • An allele is a variant of the gene.

    • It is a genetics term used to denote the opposite sexes.

    • All of the above

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  • 7. 

    Genotypes can be divided into how many types?

    • One

    • Two

    • Three

    • Four

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  • 8. 

    What are the disadvantages of a test cross?

    • It is limited to recessive traits.

    • It is ineffective for quantitative traits.

    • It is useful only if dominance is complete.

    • All of the above

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  • 9. 

    What is Mendel's third law?

    • The law of segregation

    • The law of independent assortment

    • The Law of Dominance and Uniformity

    • All of the above

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  • 10. 

    What is a monohybrid cross?

    • A cross between two individuals with homozygous genotypes for the opposing phenotype.

    • A cross between two individuals with heterozygous genotypes for the opposing phenotype.

    • It results from a cross between two heterozygous parents for two different features.

    • All of the above

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  • Current Version
  • Feb 24, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 21, 2023
    Quiz Created by
    Nia Nicholson
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