Several Alleles at Several Different Loci All Contribute Additively to the Same

question 4

Multiple Choice

Several alleles at several different loci all contribute additively to the same trait.Therefore,for this trait:

• A) homozygotes cannot exist
• B) heterozygotes cannot exist
• C) only one phenotypic class is possible
• D) only two phenotypic classes are possible
• E) continuous variation may be observed

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