When One Base Is Changed to Another at a Single

question 56

Multiple Choice

When one base is changed to another at a single position in the DNA sequence of a gene, a(n) _____ mutation has occurred.

• A)insertion
• B)deletion
• C)frameshift
• D)substitution

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Definitions:

Pathway

A route or means of access that leads to a particular destination or outcome, usually referring to progress or transitions in life events or career trajectories.

Barrier

An obstacle that prevents movement or access or the achievement of a goal.

Less Developed Countries

Countries characterized by low levels of income, industrialization, and modernization, and often marked by high rates of poverty and economic vulnerability.

Stratified

Divided or classified into different levels, classes, or groups, often based on certain criteria or characteristics.