12. Knockout mice are genetically engineered organisms in which scientists have nullified a gene of interest. The targeted gene no longer functions correctly in the mouse, and scientists can use these mice in their genetic research. What information is most likely provided to scientists through the study and use of knockout mice? A Scientists can create new breeds of mice by altering the mouse genome
B Genetic researchers can better understand the purpose of specific genes
C Biochemists can practice techniques for inserting fluorescent proteins into mice
D Biologists can increase the amount of recessive traits present in the mouse population