A gene which affects two or more unrelated characteristics is called
Correct answer: A. Pleiotropic
- A. Pleiotropic
- B. Epistatic
- C. Dominant
- D. Mutant
Explanation
Pleiotropy is defined as the expression of multiple traits by a single gene. A simple example of Pleiotropy is phenylketonuria which is a disease. It is a genetic disorder caused by the low metabolism of the amino acid phenylalanine in the body cells.
This question appeared on the UHS MDCAT 2014 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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