Mendelian Genetics
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Questions and Answers

Which term refers to the physical appearance or measurable characteristic of an organism, resulting from its genotype and interaction with the environment?

  • Phenotype (correct)
  • Heterozygote
  • Homozygote
  • Genotype
  • What is the term for the two sets of chromosomes found in most cells?

  • Haploid
  • Diploid (correct)
  • Polymorphism
  • Allele
  • In Mendelian inheritance, what is the term for a gene copy that can vary slightly in its DNA sequence?

  • Homozygote
  • Phenotype
  • Genotype
  • Allele (correct)
  • What is the term for a mutation of a single copy of a gene that causes a disease phenotype?

    <p>Dominant Negative Effect</p> Signup and view all the answers

    Which type of inheritance pattern is characterized by a 'vertical' pattern in the pedigree, where the phenotype is seen in every generation?

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

    In an autosomal recessive inheritance pattern, when two carriers mate, what is the probability of having an affected offspring?

    <p>1/4</p> Signup and view all the answers

    What is the term used to describe the proportion of individuals with a given genotype who show the associated phenotype?

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

    What is the term used to describe the situation where different genetic defects produce identical or similar clinical phenotypes?

    <p>Genetic heterogeneity</p> Signup and view all the answers

    Which of the following best describes autosomal dominant inheritance?

    <p>It is a type of inheritance where the disease phenotype is expressed in individuals who inherit one copy of the mutated gene.</p> Signup and view all the answers

    Which of the following best describes autosomal recessive inheritance?

    <p>It is a type of inheritance where the disease phenotype is only expressed in individuals who inherit two copies of the mutated gene.</p> Signup and view all the answers

    What is genetic heterogeneity?

    <p>It is the presence of different genes at different loci on homologous chromosomes.</p> Signup and view all the answers

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