Transgenic models can be generated using crispr/cas9 to introduce cancer-related mutations into cells within an organism. which of the following approaches can produce a transgenic model? (mark all that apply)
a. patient derived xenografts (pdfs)b. viral deliveryc. lipid nanoparticlesd. knockin a wildtype genetic locuse. direct nucleic acid (plasmid) injection

answer; ///i believe the correct answer is (

b.have there own function.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.