The trait "Kernel color in corn" in controlled by how many pairs of genes?
Correct answer: C. 3
- A. 1
- B. 2
- C. 3
- D. 4
Explanation
The trait of kernel colour in corn is controlled by three pairs of genes. Each of these three pairs of genes controls a different aspect of the kernel colour. The first pair controls the presence or absence of colour, the second pair controls the intensity or depth of the colour, and the third pair controls the hue or shade of the colour. Each of these pairs of genes has two alleles, one inherited from each parent, and the expression of these alleles together determines the final kernel colour of the corn.
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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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