Which of the following defines polymorphisms?

Prepare for the Clinical Genetics Test. Utilize flashcards and multiple-choice questions, each with hints and explanations. Achieve success on your exam!

Multiple Choice

Which of the following defines polymorphisms?

Polymorphisms are genetic differences that occur among individuals within a population. This means there are variations in the DNA sequence from person to person, not a single uniform sequence. Many such variations, like single nucleotide changes, are common enough to be found in a sizable portion of the population, which helps researchers track inheritance and study associations with traits. The option describing variations in the DNA sequence among individuals best captures this idea. In contrast, the idea that everyone has the same DNA sequence, or a fully conserved gene, implies no variation, and a protein variant that never changes describes stability rather than population-level variability.

Polymorphisms are genetic differences that occur among individuals within a population. This means there are variations in the DNA sequence from person to person, not a single uniform sequence. Many such variations, like single nucleotide changes, are common enough to be found in a sizable portion of the population, which helps researchers track inheritance and study associations with traits. The option describing variations in the DNA sequence among individuals best captures this idea. In contrast, the idea that everyone has the same DNA sequence, or a fully conserved gene, implies no variation, and a protein variant that never changes describes stability rather than population-level variability.

More practice questions