University of Utah- Bio 1610 Exam 2 Test Questions and Correct Answers Set.

What feature of double-stranded DNA makes it necessary to have a leading strand and a lagging strand during replication? - Answer the antiparallel orientation of the strands A mutation is - Answer any change in the nucleotide sequence of the DNA DNA replication events in order - Answer 1) The initiator protein binds the origin 2) Helicase unwinds the DNA 3) Primase synthesizes an RNA primer 4) DNA polymerase synthesizes the newly replicated strand in a 5' to 3' direction 5) Proofreading removes mispaired nucleotides in the newly replicated strand 6) Ligase seals up the nicks in the lagging strands What would happened if the ligase enzyme did not function? - Answer cells would arrest at G2/M checkpoint What is the correct product of transcription from this DNA? - Answer 5' GUGCCACAA 3' What is the correct product of transcription from this DNA? - Answer 5' AUGUGGCAC 3' Different kinds of cells in a single organism synthesize different proteins. An explanation for why this happens is the fact that different cells have different.... - Answer proteins that can activate transcription of different genes Given the DNA template strand of 3' TAC 5', the anticodon that pairs with the corresponding mRNA should be - Answer 3' UAC 5' A tRNA with the anticodon 5' AUG 3' would carry the amino acid..... - Answer histidine A normal person has nucleotides 3'-TTC-5' on the DNA template strand. Use the mRNA codon table below to determine which amino acid this codes for? - Answer Lysine synthesis of cell components required for mitosis - Answer G2