Biology for IGCSE & O level - Inheritance (Section 11 - No. 7)
Which of the following are true regarding genes and alleles?
Alleles are different forms of the same gene.
Each individual has only one allele for a given gene.
Alleles are located on different chromosomes.
Alleles can be dominant or recessive.
Giải thích
Alleles are variants of a gene and can be either dominant or recessive. Individuals have two alleles per gene.