Problem 1 How do a mutation and a polymorp... [FREE SOLUTION]

Chapter 12: Problem 1

How do a mutation and a polymorphism differ?

Short Answer

Expert verified

A mutation refers to any change in the DNA sequence and is usually rare, while a polymorphism refers to a common variation in the DNA sequence found in more than 1% of the population. Mutations are often harmful, whereas polymorphisms are generally neutral or beneficial.

Step by step solution

Define mutation

A mutation is defined as any change that occurs in the base pair sequence of the DNA. Mutations can occur due to a variety of reasons including errors during DNA replication or exposure to radiation or certain chemicals.

Define polymorphism

Polymorphism is a variation in the sequence of DNA among individuals. Polymorphisms can be due to an alteration of single base pair (known as single nucleotide polymorphism, or SNP) or long stretches of DNA.

Point out the difference

A crucial distinction between a mutation and a polymorphism lies in frequency within a population. A mutation is often rare and may occur in less than 1% of a population. In contrast, a polymorphism is a variant which occurs in more than 1% of a population. Further, mutations are often harmful or disease-causing, while polymorphisms are generally neutral and may even confer some benefit or advantage.

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How do a mutation and a polymorphism differ?

Short Answer

Step by step solution

Define mutation

Define polymorphism

Point out the difference

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