The male parent has F1F3 gene versions while the female parent has F1F2 gene versions. Offspring D has F2F3 gene versions and has the trait for high silk flexibility. This is a trait that neither parent has.

What is the body’s main processing system? it uses input from various parts to control voluntary and involutiontary movement. it’s composed of two main parts-the brain and spinal cord. a. nbs b. cns c. ans d. pns