Biology for IGCSE & O level - Inheritance (Section 5 - No. 30)
Which of the following is a key principle of Mendel's Law of Segregation?
Alleles for a trait separate during gamete formation.
Genes located on different chromosomes assort independently.
Both alleles are always expressed in heterozygotes.
The phenotype is determined by multiple genes.
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The Law of Segregation states that alleles for a trait separate during meiosis, so each gamete receives only one allele for a gene.