Fill in the Blank Questions 35.In 1977, _____________ was the first researcher to sequence a genome. 36.Heat is used in DNA sequencing to _________ the double strands of the molecule. 37.The genes encoding rRNA are examples of __________________ of genes. 38.The percentage of the human genome made up of structural DNA is _________. 20% 39.Transposable elements make up ________ of the human genome. 45% 40.The field of study involved in sequencing the genomes of organisms is _____________. Â Â