BI-354
Genes and alleles
Biology · Secondary 3 · Medium · Genes and alleles
In humans, eye colour is controlled by a gene on a chromosome. This gene has two forms, B for brown eyes and b for blue eyes. Which statement about this gene and its alleles is correct?
- B and b are different alleles of one gene for eye colour.
- B and b are two different genes for eye colour.
- Each allele contains many different genes for eye colour.
- The gene is one allele and the chromosome is the other allele.
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