Please help answer these! Need to study this sheet for final!

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)

Explain what you know about the cause of mental illnesses.

Write 5 complete sentences. explain the process of accessing valid and reliable health information. why is it important having information that is valid and reliable?