Why was Mendel fairly certain that he had a pure-breed variety when he collected seeds from a pea plant?
Correct answer: A. The flower is self-pollinating in these plants
- A. The flower is self-pollinating in these plants
- B. Peas bear a large number of "offspring"
- C. Because the varieties are so distinctive
- D. He maintained extremely accurate records
Explanation
Gregor Mendel ensured that his pea plants were purebred by carefully controlling their pollination. He removed the pollen-producing organs from the plants he wanted to cross-pollinate, and then transferred pollen from another plant onto the altered plant's female parts.
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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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