Question

A mutation in the code for a trait may not always change the amino acid. What advantage does this provide cells?

A. Allows for faster evolution
B. Increases genetic diversity
C. Enhances protein synthesis
D. Prevents genetic mutations

Answer 1

The correct answer is B. Increases genetic diversity. Silent mutations may not alter protein function but contribute to genetic variation, which can be beneficial for adaptation and resilience in changing environments.

Step-by-step explanation:

The correct answer to the question is B. Increases genetic diversity. A mutation in the genetic code for a trait may not always change the amino acid due to the redundancy of the genetic code, where several codons code for the same amino acid. This feature is known as silent mutation and provides an advantage to cells by increasing genetic diversity without necessarily affecting protein function.

Explanation: When a mutation doesn't alter the amino acid, it may still contribute to genetic diversity by creating different versions of the DNA sequence that code for the same protein. Such silent mutations can be beneficial as they increase the pool of genetic variations that can be acted upon by natural selection. Over time, some of these mutations might lead to adaptations that improve the organism's survival or reproduction, making such mutations more frequent within the population. Not all mutations result in a direct immediate benefit, yet they add to the genetic repertoire of a species, allowing for resilience and adaptability in the face of environmental changes.