two plants are crossed, resulting in offspring with a 3:1 ratio for a particular trait the parents were both heterozygous for a single trait
The individual is who has two different allele at a locus of a specific gene called as heterozygous where by one gene is dominant over the other gene.
For example heterozygous parent where Aa pair of alleles. In this pair gene A is dominant over gene a.
When an organism has two copies of the same dominant allele on a gene, it is said to be homozygous dominant, the identical recessive allele is present in two copies in a homozygous recessive organism.
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