Gene Expression

Which of the following represent alleles, not genes?

A person carries the alleles for both broad lips and thin lips. When measured, the person was categorised as having broad lips.

Which of the alleles is recessive?

Black hair is a dominant allele whereas red hair is a recessive allele.

What would be the best way to represent the red hair allele?

Blue eyes are dominant over green eyes. A person carries both alleles. What would be this person's phenotype?

Green coloured peas are dominant over yellow peas. A certain pea plant contains both the green and yellow allele. What is this plant's genotype?

Having dimples (D) is a dominant allele, whereas not having them (d) is a recessive allele.

Which of the following genotypes will result in a person having no dimples?

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