Which factors influence a person’s perception of sexual activity? Check all that apply. norms
peer group
sexual activity in books
alcohol and other drug use
personal choices about clothing styles

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)