Principle of Inheritance and VariationMediumBloom L1
Question
The contrasting pairs of factors in Mendelian crosses are called
Options
A.multiple alleles
B.allelomorphs
C.alloloci
D.paramorphs
Solution
(b) [Key Concept: Allelomorphs — Mendel's Contrasting Factors] The contrasting pairs of factors (alternative forms of a character) in Mendelian crosses are called ALLELOMORPHS (or alleles). Mendel called them 'factors'; the term 'allelomorph' (later shortened to allele) was coined by Bateson and Saunders (1902) to describe alternative forms of a gene at the same locus. For example, T (tall) and t (dwarf) are allelomorphs for stem height in pea.
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