When two dominant independently assorting genes react with each other, they are called:
Correct answer: B. Complementary genes
- A. Collaborative genes
- B. Complementary genes
- C. Duplicate genes
- D. Supplementary genes
Explanation
Complementary genes are those nonallelic genes that independently show a similar effect but produce a new trait when present together in the dominant form. Supplementary genes are a pair of non allelic genes, one of which produces its effect independently in the dominant state while the dominant allele of the second gene is without any independent effect but can modify the effect of the former to produce a new trait. Duplicate genes are independent genes producing the same or similar effect.
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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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