Question

If self-fertilization results in low fitness, why would an organism choose self-fertilization as a mating strategy?

a-It ensures reproduction in low-population densities.
b-It prevents inbreeding depression.
c-It increases genetic diversity.

Answer 1

Self-fertilization can be advantageous in low-population densities and can prevent inbreeding depression.

Step-by-step explanation:

Self-fertilization, also known as self-pollination, can be advantageous for organisms in certain circumstances:

1. It ensures reproduction in low-population densities: In situations where there are very few potential mates available, self-fertilization allows an organism to reproduce without relying on finding a compatible partner.
2. It prevents inbreeding depression: Inbreeding, or mating among closely related individuals, can lead to a decrease in fitness due to the accumulation of harmful genetic mutations. Self-fertilization can help to avoid this by introducing some genetic diversity, reducing the risk of inbreeding depression.

In conclusion, while self-fertilization may result in low fitness compared to outcrossing, it can still be a beneficial mating strategy in certain contexts.