Chapter 7 - Essential Cell Biology (Alberts) Questions and Answers ( Level A+) 2023

Central Dogma - -Genetic information flows from DNA to RNA to protein. -What base is not present in RNA? - -T -In RNA what base pairs with a base A? - -U -An RNA molecule can fold into complex 3D shapes because - -it is single stranded. -All of the RNA in a cell is made by what process? - -Transcription -What determines the nucleotide sequence of an RNA strand? - -Complementary base pairing with the DNA template during transcription. -RNA polymerases join nucleotides together through what kind of bond? - -Phosphodiester -An RNA chain elongates in what direction? - -5' to 3' -What energy drives the transcription reaction forward? - -The hydrolysis of high-energy bonds of ribonucleoside triphosphates elongation -RNA polymerases can start an RNA chain without a primer. - -TRUEEEE