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A Biology 101 Lecture Quiz #12 CIRCLE YOUR SECTION NUMBER T 5458 9:10 AM Name ____________________________ T 5457 1:30 PM Note: Lettered selections on the right side might be used more than one time (or not at all) as answers for questions or descriptions on the left. [10pts] Identification: Answer with the word or words that best respond to the statement on the left. # Description Enzyme that joins Okazaki fragments together during DNA replication Structure Enzyme that assists in RNA splicing events following transcription Enzyme that removes RNA primers and replaces them with DNA nucleotides during DNA replication Enzyme that unwinds parental DNA double helix at replication forks Enzyme that relieves over winding strain ahead of replication forks during DNA replication [5pts] Short Answer: In the 1950’s, Watson and Crick theorized that DNA nucleotides in opposing strands pair by a mechanism in which purine nucleotides always pair with pyrimidine nucleotides. Why did they theorize that it is always a purine-pyrimidine pair? A Biology 101 Lecture Quiz #12 [5pts] Short Answer: Please describe what a ‘lagging strand’ is in DNA replication [5pts] Matching: Select the best match (on the right) for each issue on the left # Match Description Letter Answer A small section of mRNA that codes for a unique amino acid A Exon A section of a mRNA transcript that is ‘noncoding’ and will not be utilized in translation B Promoter Nucleic acid sequence that is a copy of a gene C mRNA A biomolecule that carries appropriate amino acids to the ribosome for a growing peptide chain DNA Sequence, just ahead of a gene, where RNA polymerase will attach D Codon E DNA F Anticodon G Intron H tRNA