Genetics Module 2 Exam With Questions and Answers 100% Solved

Genetics Module 2 Exam With Questions and Answers 100% Solved What does it mean to say that double-stranded nucleic acids are antiparallel? - answer(Marked off)It means one strand is 5'-3' and the other is 3'-5'. The strands are running in opposite directions so the nucleic acids are antiparallel. Splicing of eukaryotic pre-mRNA involves ___ reactions and occurs in the ___ . a. methylation b. transesterification c. polyadenylation d. nucleus e. cytoplasm - answerb,d An organism has a T content of 20%. What is the percentage for C? - answer30% Match the term with the best letter choice: a. supercoil removal b.RNA primer synthesis c. 3' → 5' exonuclease activity d. lagging strand e. single-strand breaks f. unidirectional replication g. strand invasion h. leading strand i. phosphodiester bonds at DNA nicks j. translesion DNA synthesis k. bidirectional circular replication - answerDNA gyrase --> a. supercoil removal --> b --> c Okazaki fragments --> d. lagging strand --> e rolling-circle replication --> f. unidirectional replication --> g continuous synthesis --> h. leading strand DNA ligase --> i. phosphodiester bonds at DNA nicks ---> j theta replication --> k. bidirectional circular replication The 3' untranslated region affects the ___ of mRNA and the ___ of the mRNA protein-coding sequence. a. translation b. splicing c. stability d. transcription - answera,c What is meant by the term heterogeneous nuclear RNA (hnRNA)? - answerThe original RNA transcripts found in eukaryotic nuclei before post-transcriptional modifications. A diverse assortment of RNA types found in the nucleus, including mRNA precursors (pre-mRNA) and other types of RNA. The triplet _____ is commonly used as a start codon during translation. - answerAUG Assuming that an amino acid sequence is 250 amino acids long, how many different molecules, each with a unique sequence, could be formed? - answer20^250 Kornberg, in his experiments to demonstrate the function of DNA polymerase I, sought to show that DNA Pol 1 was capable of replicating biologically active DNA. What is the definition of biologically active DNA in this context? - answerBiologically active DNA can support metabolic activities and direct reproduction of the organism i