IGCSE Biology 12 Views 1 Answers

Sourav PanNovember 15, 2024
State that a heterozygous individual will not be pure-breeding
State that a heterozygous individual will not be pure-breeding
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Sourav PanMay 15, 2025
Heterozygous Individuals and Pure-Breeding
A heterozygous individual, which possesses two different alleles for a specific gene (e.g., Aa), will not be pure-breeding. This distinction is important in genetics and breeding practices.
Explanation
- Heterozygous Condition: In a heterozygous individual, the presence of two different alleles means that the organism can produce gametes with different alleles (A or a). As a result, when this individual breeds, the offspring can inherit either allele, leading to variation in the traits expressed.
- Pure-Breeding Definition: Pure-breeding refers to organisms that are homozygous for a particular trait (e.g., AA or aa). These individuals consistently produce offspring with the same phenotype because they pass on identical alleles.
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