Genetics uses advanced technology to actually manipulate genes in order to determine their effect on behavior.

The correct answer is - molecular genetics.

Explanation:

Molecular genetics is the subfield or the branch of the genetics that dealing with the manipulation of the organism at the molecular level which is a gene or genetic material with the help of the advanced technology.

It is an investigating approach that helps in determining the effect of the genes or genetic material that is manipulated on the behavior of the organism.

Thus, the correct answer is - molecular genetics.

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