From Wikipedia, the free encyclopedia. An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where it may appear as F1 crossbreed.
Dr. Dominic Dematteo is a Family Practice Specialist in Bensalem, Pennsylvania. He graduated with honors from Philadelphia College Of Osteopathic Medicine in 1990.
Meet Dr. David Rankin. Dr. Rankin is currently Chief of Plastic Surgery at St. Maryâs Medical Center and is board certified by the American Board of Plastic Surgery.