Question

In the case of complete dominance, if a plant has a _______ genotype for a particular trait, its phenotype will have the ____ trait.

a) Heterozygous; recessive
b) Homozygous dominant; dominant
c) Homozygous recessive; recessive
d) Heterozygous; dominant

Answer 1

In complete dominance, a plant with a homozygous dominant genotype for a particular trait will express the dominant phenotype.

Step-by-step explanation:

When it comes to complete dominance in genetics, if a plant has a homozygous dominant (TT) genotype for a particular trait, its phenotype will have the dominant trait. In other words, both alleles of the gene for that trait are the same and are dominant.

For example, the phenotype of a pea plant that is homozygous dominant (TT) for the tall trait is tall. Similarly, if a pea plant is heterozygous (Tt) for the trait, it will still have the dominant tall phenotype, as the dominant allele overrides the recessive allele incomplete dominance.

In this scenario, the correct answer would be b) Homozygous dominant; dominant.