uracil

"He replaces the book on the shelf after reading it. "

"The teacher is pairing students together for a group project. "

"This flavour of soup has been assigned the code WRT-9."

"The car's engine is made of many different parts. "

"My son's math test had only one correct answer for the last problem. "

"Do you want to come with?"

"The school's new curriculum is built on strong bases of critical thinking and problem-solving. "

"Simple Sentence: "In a DNA strand, adenine always pairs with thymine, like two puzzle pieces fitting together." "

"My brother has a genetic predisposition to being a good athlete. "

"Here are the pairs of socks I washed. "

"During biology class, we learned that thymine is a chemical component of DNA. "

"The form of the new school building is modern and striking. "