Essentials of Medical Genetics for Nursing and Health Professionals 1st Edition McClary Test Bank
Chapter 1 – Introduction
- A new patient comes to establish care at the family medicine clinic where you work.
- Karyotype
- Genotype
- Pedigree
- Genome
During your history taking, you create a diagram representing the familial relationships among the patient’s relatives to analyze Mendelian inheritance of certain traits. What is this diagram called?
Answer: C
Rationale: A diagram that represents relationships between family members is called a pedigree. Answer A is incorrect because a karyotype is the number and appearance of chromosomes within a cell. Answer B is incorrect because a genotype is the genetic makeup of a cell. Answer D is incorrect because a genome is the genetic material of an organism. Therefore, C is the correct answer choice.
- You are counselling your patient with albinism, which is a homozygous recessive allele.
- More males than females are affected.
- Affected individuals would not have affected offspring.
- Affected individuals typically have affected parents.
- Approximately 50% of siblings with the same parents are affected.
She is worried about the chances of her future children being affected by this condition.Which of the following isTaEcSorTreBcAt sNtaKteSmEeLntLrEegRa.rdCinOgMyour education of this patient?
Answer: B
Rationale: Answer B is correct because her mating partner is likely homozygous for the normal (non-albino) allele, so her offspring would be heterozygous and therefore not affected. Answer A is incorrect because this is the description of an X-linked recessive condition; males are more affected because they only have one X chromosome and therefore require normal functioning of that chromosome. Answer C is incorrect because it contradicts the correct answer (B). Answer D is incorrect because all this patient’s offspring are likely to be unaffected.
- A karyotype halts mitosis in what stage?
- Prophase
- Metaphase
- Anaphase
- Telophase
Answer: B
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