DSSSB - 29 August 2019 (Shift-2)
Pathology & Genetics
Easy

The study of the entire genome is called?

Appeared in: DSSSB - 29 August 2019 (Shift-2)

Explanation

  • Genomics is the comprehensive study of an organism's entire genome, which includes the complete set of DNA, all genes, and their complex interactions.
  • This field goes beyond single genes to analyze the structure, function, evolution, and mapping of genomes in their entirety.
  • The Human Genome Project, which mapped all human genes, was a foundational achievement in the field of genomics.

Why Other Options Were Wrong

  • Option B: Genetics is a narrower field that focuses on the study of individual genes, heredity, and how traits are passed from one generation to the next.
  • Option C: Genetic polymorphism is not a field of study but a term describing a common variation in the DNA sequence within a population, such as different blood types or eye colors.
  • Option D: The genetic code refers to the specific rules by which the sequence of nucleotides in DNA and RNA is translated into the sequence of amino acids in a protein. It is a fundamental concept within genetics and genomics, but not the study of the entire genome.

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Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definitions of Genomics and Genetics as background academic context rather than a clinical decision trigger.
  • Understanding genomics is vital for modern nursing, particularly in the area of pharmacogenomics, which helps in tailoring drug therapy to an individual's genetic makeup to improve safety and efficacy.
  • Nurses may be involved in collecting samples for genetic testing, educating patients about genomic tests, and monitoring for drug responses or side effects based on a patient's known genetic profile.
  • What if a patient on clopidogrel has a genetic variant making them a 'poor metabolizer'? The nurse must be vigilant for signs of treatment failure, such as symptoms of a heart attack or stroke, as the drug may not be effectively activated in their body.
How to Approach the Question
  • First, identify the key phrase in the question: 'study of the entire genome'.
  • Recall the definitions of the terms provided in the options.
  • Differentiate between 'genetics' (study of individual genes/heredity) and 'genomics' (study of the whole genome).
  • Recognize that 'genetic polymorphism' and 'genetic code' are specific concepts within the broader fields, not the names of the fields themselves.
  • Select 'Genomics' as the term that specifically refers to the study of the entire genome.
Concept Tested & Keywords
  • Concept Tested: Definitions of Genomics and Genetics
  • Stem keywords: study, entire genome
  • Lead-in keywords: is called

Question ID

QKLFihWl90eqMsrmLeaXdg

Reference Book

E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 884-886

E6 Obstetrics Williams p. 4-12

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