A(n)______ Cross Yields a Genotypic Ratio of 1:2:1 and a Phenotypic

Question

A(n)______ cross yields a genotypic ratio of 1:2:1 and a phenotypic ratio of 3:1.
A) allelic
B) monohybrid
C) test
D) dihybrid
E) trihybrid

Accepted Answer

A monohybrid cross involves the study of inheritance patterns of one trait. When two heterozygous individuals (Aa x Aa) are crossed, the genotypic ratio of the offspring is 1:2:1 (AA:Aa:aa), and the phenotypic ratio is 3:1 (dominant phenotype: recessive phenotype).