Question

The hybrid that produced from two pairs of allelomorphs is

• A. Phenotype
• B. Polyhybrid
• C. Dihybrid
• D. Polyploid

Answer 1

The correct option is C Dihybrid

Dihybrid cross is a cross between two pure lines (varietes, strains) of that differ in two traits, i.e., alelle pairs of particular interest. In Mendelian sense, between the alleles of both these loci there is a relationship of complete dominance and recessive.

For example- RRYY/rryy parents result in $F_1$ offspring that are heterozygous for both R and Y (RrYy). The resultant of dihybrid cross is dihybrid, which is produced from two pairs of allelomorphs. Thus, option C is correct.

Phenotype is the physical appearance.

Polyhybrid is produced from multiple pairs of alleomorphs.

Polyploid organisms are those containing more than two paired (homologous) sets of chromosomes.