Knockout mice have been genetically altered to knock out specific genes. How are these mice most often used in research

2polnis which of the following is an advantage of an in vitro experiment?me

What are positive impacts of algae? how is it used?

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?