Speciation Occurs When Members of Two Species Are So Genetically

question 71

True/False

Speciation occurs when members of two species are so genetically different that they can no longer interbreed and produce fertile offspring.

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Definitions:

Allele Frequencies

The relative frequency of alleles (variations of a gene) within a population.

Dominant Gene

A dominant gene is an allele that expresses its phenotype even in the presence of another allele, effectively masking the effects of a recessive allele.

Recessive Gene

An allele that produces its characteristic phenotype only when its paired allele is identical, otherwise being masked by the effects of a dominant gene.

Frequency

The number of occurrences of a repeating event per unit of time.