106k views
3 votes
Which best describes a helpful genetic mutation? a mutation that cannot be passed on to offspring a mutation that increases an organism's chances of survival a mutation that results in no change to the organism's physical appearance a mutation that causes cells to divide rapidly and uncontrollably

User Ben Hunter
by
7.5k points

2 Answers

1 vote

Answer:

A mutation that increases an organism's chances of survival

Step-by-step explanation:

(B)

User Susundberg
by
7.3k points
4 votes

Final answer:

A helpful genetic mutation is best described as one that increases an organism's chances of survival, known as a beneficial mutation. These mutations lead to adaptations that can become more prevalent in the population over time. Therefore, the correct option is b.

Step-by-step explanation:

The best description of a helpful genetic mutation is one that increases an organism's chances of survival. This kind of mutation is referred to as a beneficial mutation, which generally leads to new versions of proteins that help organisms adapt to their environment. When these mutations enhance an organism's fitness — its ability to survive and reproduce — they tend to become more common in the population over time. For example, the 32 base pair deletion in human CCR5 (CCR5-Δ32) confers resistance to HIV and has become more prevalent in certain populations.

User Chmullig
by
9.1k points