The plant 4'o clock shows:
Correct answer: B. Incomplete dominance
- A. Complete dominance
- B. Incomplete dominance
- C. Codominance
- D. Over-dominance
Explanation
The Carnation plant (which is an example of incomplete dominance) has true-breeding white flowers and true-breeding red flowers. A cross between white- and red-flowering carnation plants may result in offspring with a phenotype of pink flowers. Four o'clock flowering plants are an example of incomplete dominance.
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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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