Self-fertilization in plants through successive generations can lead to the development of:
Correct answer: C. True breeding plants
- A. Hybrid breeds of plants
- B. Variations in coming generation
- C. True breeding plants
- D. Adaptation with their environment
Explanation
Repeated self pollination steadily removes heterozygotes, since each generation halves their proportion, until the line is homozygous and breeds true for every character. This is exactly how Mendel obtained the pure lines his experiments depended on. Hybrids and new variation arise from cross fertilisation, which is the opposite process.
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About Mendel's Laws of Inheritance
Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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