The contrasting pairs of factors in Mendelian crosses are called:
Allelomorphs
The correct option is A:
Explanation of the correct option:
Allelomorphs:
Explanations of the incorrect options:
Option B:
Multiple alleles:
Option C:
Paramorph is a biological variant that deviates from the mean of the species to which it originally belongs.
Option D:
Alleles located on different loci are called Alloloci.
Final answer: The contrasting pairs of factors in Mendelian crosses are called allelomorphs.