RNA Related to DNA. When the genes are โexpressedโ (turned on) an RNA transcript is made that the cell can use to make a protein with a specific function. Read more here. Synonyms: mRNA Related Articles: Biology 101 Embryo Arrest Rising seasonal temperatures linked to lower ovarian reserve Why do embryos in IVF fail to implant or miscarry? Genetic analysis of arrested embryos reveals 3 distinct types