Which of the following statements are true about genetic engineering?

1: Pieces of DNA from two different organisms are joined.

2: Genes from complex organisms such as animals can be inserted into bacteria or yeast.

3: There are no known risks for genetic engineering.

4: Genetic engineering is used to produce large amounts of proteins to treat certain diseases, like insulin for diabetes.

1 and 2 only

1 and 3 only

1, 2 and 4 only

1, 2, 3 and 4

For genetic engineering, pieces of DNA from different organisms are joined, and genes from complex organisms can be inserted into less complex ones.

What is genetic engineering?

It is the application of technology in biology such that the genomes of organisms can be modified with desired traits.

Using genetic engineering, the DNA of an organism can be modified with the DNA of another organism. Genes of complex organisms can be inserted into simple organisms for study.

Genetic engineering has several applications, including in agriculture, medicine, etc. It has been used to produce drugs to treat different diseases in humans.

More on genetic engineering can be found here: https://brainly.com/question/13491558

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