An organism that has different alleles - one dominate and one recessive it's called

An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.

Explanation:

she forgot to record a transaction

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: