Question

how is allele frequency expressed? ratio decimal percentage

Explanation:

Allele frequency can be expressed in multiple ways. A ratio shows the proportion of one allele to another. A decimal is a numerical value between 0 and 1 that represents the proportion of a particular allele in a population. A percentage is a proportion out of 100, also indicating the relative abundance of an allele.

Answer:

All of the options (ratio, decimal, percentage) can be used to express allele frequency.