Characters or phenotypes which vary continuously were in the early part of the t

Question

Characters or phenotypes which vary continuously were in the early part
of the twentieth century thought to be influenced by genes which were
not single factor Mendelian genes. Ronald Fisher wrote a paper in 1918
in which he argued that continuosly varying characters were influenced
by the same kinds of genes studied by Mendel. The difference was that
these characters, say weight, were influenced by ________ genes each
with ___________ influence on phenotypic variation.
a. regulatory epistatic b. enzymatic stoichiometric
c. many partial d. few dominant e. many recessive

Explanation / Answer

d. few, dominant

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