In addition to smaller hind limb muscle mass, the mutant "mini Muscle" gene exhibits lower heart rates during physical activity, and larger kidneys and livers in mice. This is a very good example of _.
Correct answer: D. Pleiotropy
- A. Epistasis
- B. Multiple alleles
- C. Codominance
- D. Pleiotropy
Explanation
Pleiotropy occurs when one gene influences two or more seemingly unrelated phenotypic traits. Here we can see that the mutant mini muscle gene not only alters the hind limb muscles but has its effect on kidneys, liver, and heart rate maintaining cells.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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