Punnett Square and Genetic Inheritance
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Questions and Answers

What is the term for the alleles an individual possesses for a particular characteristic?

  • Genotype (correct)
  • Allele
  • Trait
  • Phenotype

    • Which of the following is an example of a recessive trait?

  • A gene that is always passed down from parents to offspring
  • A dominant allele that always expresses itself
  • An allele that will only have an effect if the other allele is also recessive (correct)
  • A phenotype that is always visible

    • What is a Punnett square used for?

  • To predict the results of a genetic cross (correct)
  • To identify an individual's genotype
  • To analyze the DNA of an individual
  • To determine the likelihood of a dominant trait

    • What is the term for a version of a gene that produces the same phenotype whether its paired allele is identical or different?

    <p>Dominant allele</p> Signup and view all the answers

    What is the physical material that carries the instructions for a characteristic?

    <p>A section of DNA</p> Signup and view all the answers

    What is the term for the physical expression of an individual's genotype?

    <p>Phenotype</p> Signup and view all the answers

    What is the genotype of a male with brown eyes in the given cross?

    <p>BB</p> Signup and view all the answers

    What is the phenotype of a female with genotype bb in the given cross?

    <p>Blue eyes</p> Signup and view all the answers

    What is the purpose of a Punnett square?

    <p>To predict the results of a genetic cross</p> Signup and view all the answers

    What is the correct way to set up a Punnett square?

    <p>Female alleles in the top row and male alleles in the left-hand column</p> Signup and view all the answers

    What is the relationship between the genotype BB and the phenotype of brown eyes?

    <p>BB is dominant to brown eyes</p> Signup and view all the answers

    What is the term for a characteristic that is expressed when an individual has one or two copies of a particular allele?

    <p>Trait</p> Signup and view all the answers

    What is the probability of a offspring having blue eyes if the parents have genotypes BB and bb respectively?

    <p>0%</p> Signup and view all the answers

    What is the purpose of a Punnett square?

    <p>To predict the results of a genetic cross</p> Signup and view all the answers

    What is the difference between a dominant and recessive trait?

    <p>A dominant trait is always expressed, while a recessive trait is only expressed when an individual has two copies of the allele</p> Signup and view all the answers

    What is the term for the physical characteristic of an organism, such as eye color?

    <p>Trait</p> Signup and view all the answers

    What is the term for the genetic makeup of an individual?

    <p>Genotype</p> Signup and view all the answers

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