Genetics Chapter on Non-Mendelian Inheritance
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Questions and Answers

What denotes Non-Mendelian inheritance categories?

  • Inheritance patterns that do not fall into single gene, chromosomal, or multifactorial categories (correct)
  • Single gene inheritance only
  • Inheritance patterns limited to traditional Mendelian examples
  • Chromosomal and multifactorial inheritance only

    • What is a key characteristic of trinucleotide repeat expansion?

  • It causes immediate expression of symptoms after inheritance.
  • It leads to disease phenotypes through the expansion of specific triplet sequences. (correct)
  • It involves the deletion of genetic material.
  • It is only associated with mitochondrial inheritance.

    • Which of the following diseases is associated with CAG repeat expansion?

  • Sickle cell disease
  • Huntington disease (correct)
  • Down syndrome
  • Cystic fibrosis

    • Which statement about mitochondrial inheritance is true?

    <p>Only females can pass on mitochondrial diseases to their children.</p> Signup and view all the answers

    What is meant by 'anticipation' in the context of trinucleotide repeat expansion?

    <p>Symptoms become evident earlier and with more severity in subsequent generations.</p> Signup and view all the answers

    Which of the following accurately describes mitochondrial DNA?

    <p>It has its own unique set of genes separate from nuclear DNA.</p> Signup and view all the answers

    What outcome occurs from an increase in the length of unstable repeats associated with trinucleotide repeat expansion?

    <p>It can affect gene expression and lead to disease.</p> Signup and view all the answers

    In which type of inheritance are affected fathers unable to pass on the disease?

    <p>Mitochondrial inheritance</p> Signup and view all the answers

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