Dominant & Recessive

Front

What is a dominant phenotype?

Back

A dominant phenotype is the observable trait that is expressed when at least one dominant allele is present in the genotype.

Front

What is a recessive phenotype?

Back

A recessive phenotype is the observable trait that is expressed only when two recessive alleles are present in the genotype.

Front

What does the genotype 'BB' represent?

Back

The genotype 'BB' represents a homozygous dominant condition, meaning both alleles are dominant.

Front

What does the genotype 'Bb' represent?

Back

The genotype 'Bb' represents a heterozygous condition, meaning one allele is dominant and the other is recessive.

Front

What does the genotype 'bb' represent?

Back

The genotype 'bb' represents a homozygous recessive condition, meaning both alleles are recessive.

Front

If a trait is dominant, what genotypes can express that trait?

Back

Both 'BB' and 'Bb' can express a dominant trait.

Front

What is the phenotype of the genotype 'Dd'?

Back

The phenotype of the genotype 'Dd' is dominant.

Front

What is the phenotype of the genotype 'dd'?

Back

The phenotype of the genotype 'dd' is recessive.

Front

What is the phenotype of the genotype 'DD'?

Back

The phenotype of the genotype 'DD' is dominant.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous genotypes have two identical alleles (e.g., 'BB' or 'bb'), while heterozygous genotypes have one dominant and one recessive allele (e.g., 'Bb').