Characters are more likely to exhibit continuous variation when
A) there are no environmental effects.
B) they are affected by alleles at more than one locus.
C) inheritance is blending rather than particulate.
D) there are only two alleles.

Question

Quizplus · Accepted Answer

Continuous variation is produced by the combined effects of multiple genes (polygenic inheritance). Therefore, when characters are affected by alleles at more than one locus, they are more likely to exhibit continuous variation. This is because each locus contributes a small additive effect, leading to a range of phenotypic outcomes rather than clear-cut categories.

Characters Are More Likely to Exhibit Continuous Variation When