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Solutions to Practice Problems for Molecular Biology, Session 3: Transcription, Translation!! Question 1 !! Fill in the table: ! Transcription Translation Where does this process occur in a nucleus cytoplasm eukaryotic cell? What is the enzyme that carries out RNA polymerase Ribosome this process? What is the template that is read DNA RNA
RNA polymerase: binds to a DNA molecule and transcribes DNA into mRNA. c. Transcription Factors: respond to external stimuli and bind to specific regions of DNA near the promoter sequence of a gene, which signals RNA transcription to begin. 16. Transcription factors are proteins that bind to promoter regions of DNA and signal RNA polymerase to ...
The first diagram below shows the levels of mRNA from two different genes (bicoid and caudal) at different positions along the anterior-posterior axis of a Drosophila egg immediately before fertilization.
1. The diagram illustrates the lac operon. The top picture shows the operon in the absence of lactose and the bottom picture shows the operon in the presence of lactose. What is the green shape, labeled “2”? a. Repressor b. Promoter c. RNA polymerase d. Operator 2. What type of operon does this portray? a. Repressible b. Inducible c. Co ...
Translation Questions: 1.Explain why a cell needs both mRNA and tRNA in order to synthesize a protein. First, explain theirfunctions. - mRNA has information from DNA, only way to get information from DNA out of nucleus while protecting DNA - tRNA carries amino acids to make polypeptides, need amino acids to build polypeptide 2.
Questions and model answers on 6.2 Protein Synthesis for the CIE A Level Biology syllabus, written by the Biology experts at Save My Exams.
ESSAY QUESTIONS Answer all parts of the following questions completely. 1. (A) Diagram a Gram-positive and Gram-negative bacterial cell wall. (B) Demonstrate the differences in the chemical structure of these two types of bacterial cell walls. (C) Where and when does penicillin affect bacterial cells? (D) Explain how autolysins affect the cell ...
