Question

An allele that confers a fitness benefit in the past environment may provide no benefit or may even become _____ in the new environment

Answer 1

An allele that confers a fitness benefit in the past environment may become disadvantageous in a new environment due to changes in the environment.

Step-by-step explanation:

An allele that confers a fitness benefit in the past environment may provide no benefit or may even become disadvantageous in the new environment. This is because fitness is determined by the environment, and environmental conditions can change over time. For example, a trait that helped an organism survive and reproduce in one environment may no longer be advantageous in a different environment.