What evolutionary model for the maintenance of sexual reproduction do the following data appear to support?

Question

Quizplus · Accepted Answer

The Red Queen hypothesis proposes that sexual reproduction is maintained due to the need to constantly adapt to changing environments and co-evolving parasites. The data shown in the question do not support Muller's ratchet, which suggests that asexual reproduction may lead to a build-up of harmful mutations. The Fisher-Muller hypothesis also deals with the accumulation of beneficial mutations in a sexually reproducing population, but the data do not provide evidence for it. The environmental unpredictability hypothesis proposes that sexual reproduction is advantageous in fluctuating environments, but the data do not explicitly suggest this as the main driving force for the maintenance of sexual reproduction.

What Evolutionary Model for the Maintenance of Sexual Reproduction Do