Gene is the molecular unit of which of the following?
Correct answer: C. Heredity
- A. DNA
- B. RNA
- C. Heredity
- D. Genotype
Explanation
A gene is best described as the fundamental molecular unit of heredity because it carries information that is passed from one generation to the next. Although genes are composed of DNA and are expressed through RNA, their primary biological role is in heredity, making Option C (Heredity) the correct and most accurate choice.
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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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