Assuming complete dominance,a phenotypic ratio of __________is expected from a monohybrid sib or self- cross.
A)5:2
B)2:1
C)3:2
D)3:1
E)1:1

Question

Quizplus · Accepted Answer

When a monohybrid sib or self-cross is performed assuming complete dominance, the phenotypic ratio is expected to be 3:1. This means that 3 individuals would show the dominant phenotype and 1 individual would show the recessive phenotype. This is because the dominant allele masks the expression of the recessive allele in heterozygous individuals. Therefore, the best choice is D.

Assuming Complete Dominance,a Phenotypic Ratio of __________Is Expected from a Monohybrid