Introduction to Medical Inheritance: Patterns in Families - BM5 RCR1

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1. Which of the following is the most accurate definition for hemizygous?

  • Having only one copy of a gene or DNA sequence in a diploid cell
  • Having two different alleles at a locus
  • Having two of the same alleles at a locus
  • Having two or more genetically different cell lines derived from a single zygote
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Other questions in this quiz

2. Which of the following is an example of an autosomal recessive disease?

  • Usher Syndrome
  • Haemophilia A
  • Malignant Hyperpyrexia
  • Chronic Granulomatous Disease

3. True or false: Y-linked conditions will affect all sons from an affected father?

  • Pass
  • Mary
  • True
  • False

4. What is an autosomal gene?

  • A gene with two copies, one on each chromosome
  • A recessive gene
  • A gene found on only the X chromosome
  • A gene found only on the Y chromosome

5. Which of the following is the most accurate definition for a locus (in relation to genetics)?

  • The point at which the branch of a Y chromosome attaches to the branch of another Y chromosome
  • The unique chromosomal location defining the position of a gene or DNA
  • The place at which DNA Polymerase attaches to the start codon
  • The location of the Trisomy 21 mutation

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