The colour phenotype of the grain is the sum of individual effects of _ alleles.
Correct answer: A. Six
- A. Six
- B. Four
- C. Five
- D. Five or three
Explanation
Three different gene pairs at three different loci contribute to the wheat grain color. So, each individual would contain six alleles for the trait.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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About Mendel's Laws of Inheritance
Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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