Forms of Inheritance 1

Co-dominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is a combination of both traits, such as a roan cow with red and white fur.

1 Red : 2 Roan : 1 White.

A heterozygous flower has two different alleles for a trait, such as one allele for red color and one for white color, resulting in a pink flower.

The probability is 1/4.

Incomplete dominance is a form of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes, such as grey offspring from a black and a white rabbit.

The phenotype of all offspring will be pink (RW) flowers.

Phenotype refers to the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Genotype is the genetic constitution of an individual, represented by the alleles inherited from the parents.

The F1 generation is the first filial generation of offspring resulting from a cross between two parental (P) organisms.

Dominant alleles express their trait even in the presence of a recessive allele, while recessive alleles only express their trait when two copies are present.