Which factor determines an organism's inherited traits?

Genetics.

Explanation:

Genetics is a science that deals with the study of the inheritance of living beings and similarities. Genetics is responsible for the molecular function and structure of the gene. Genetics is responsible for inheriting the parental genes and passing them on to posterity. Genetics is an element that is also present in other living organisms. At its most basic level, inheritance in plants occurs via genes. The trait was first observed by Gregor Mendel, who explored the segregation of hereditary traits

Genes

Explanation:

The genes are the factor that determines an organism's inherited traits.

A gene is a unit of heredity which the parent passes on to their offspring. The total gene inherited makes up the genotype of a person.

They are usually found in the nucleus and are made up of deoxynucleic acids or DNA made up of a double helix structure.

A gene is the fundamental unit of hereditary.

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