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QUESTION 6 0.1 points (Extra Credit) See A Which of the following statements about gene regulation is not true? RNA Interference is the inhibition of mRNA translation by siRNA's or miRNA's literally blocking access to the mRNA transcript or causing it to degrado DNA methylation can reduce or halt DNA transcription as DNA is negatively charged and the added methyl is negatively charged causing the methylated DNA to supercoll becoming inaccessible to RNA polymerase. Eukaryotic gene regulation may involve modifying access to genes, transcriptional controls, mRNA modifications, translational controls, and post-translation protein degradation Alternative RNA splicing in eukaryotes can produce many different polypeptides from a single mRNA sequence by interpreting differing mRNA segments as introns or exons and splicing them accordingly. Some operons such as the lac operon can be controlled through both positive and negative gene regulation

Hyduve une regulation Save an QUESTION 7 0.1 points (Extra Credit) Which of the following statements is not true? DNA cloning typically uses vectors, usually bacteria, to replicate DNA molecules producing a population of cells all containing the cloned DNA of interest Microarrays are used to determine gene expression of multiple genes through analyzing mRNA's currently present in an individual's cells. Recombinant DNA combines DNA from multiple sources usually requiring the use of reverse transcriptase. A paleontologist has recovered a bit of tissue from the 400-year-old preserved skin of an extinct dodo (a bird). To compare a specific region of the DNA from the sample with DNA from living birds, PCR would be most useful biotechnology technique to increase or amplify the amount of dodo DNA available for testing, Biotechnology is any technology based in biology or a biological system. 0.1 points (Extra Credit) QUESTIONS