Question

Most mutations are?

1) deleterious( have a negative affect on fitness of an organism)
2) adaptive (have a positive affect on fitness of an organism)
3)neutral (no affect on fitness organisms
4) powerful (they have a powerful affect on the fitness of an organism

Answer 1

3. Neutral

Step-by-step explanation:

Mutations can be neutral, harmful, or beneficial, though the neutral theory of molecular evolution predicts that most mutations are “nearly” neutral or only slightly deleterious, while beneficial mutations—which confer a survival advantage on an organism and, if it reproduces, on its progeny—are quite rare.