How do they do genetic engerneeing?

Answer 1

Two major ways:

1) selective breeding,

2) messing with DNA - either directly or by using viruses.

Answer 2

Genetic engineering involves manipulating an organism's genes to create desired traits or outcomes. This can be done using techniques like CRISPR-Cas9 to precisely edit specific genes, or by inserting foreign genes into an organism's DNA. These methods allow scientists to modify crops, animals, and even humans to improve traits like disease resistance, growth rates, or productivity.