Results from mutations in one of several genes involved in the production of thyroid hormones. O Hypothyroidism O Thyroid dysgenesis O Thyroid dyshormonogenesis O Hyperthyroidism
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- Which of the following is characteristic of genes and gene regulation in both bacteria and eukaryotes? (a) promoters (b) non-coding DNA within coding sequences (c) enhancers (d) operons (e) DNA located in a nucleusBinding or ___ to ___ in DNA can increase the rate of transcription of specific genes. a. activators; repressors b. activators; enhancers c. repressors: operators d. repressors: enhancersWhich of these is found in eukaryotes but not in bacteria? Group of answer choices 1. the use of pre-transcriptional regulation 2. promoters that bind RNA polymerase 3. enhancer regions in the DNA 4. proteins that regulate RNA polymerase binding
- Is each of the following statements true or false? A. An enhancer is a type of regulatory element. B. A core promoter is a type of regulatory element. C. Regulatory transcription factors bind to regulatory elements. D. An enhancer may cause the down regulation of transcription.A researcher that uses mouse models to understand protein function in the immune system ,genetically engineered one of her mice to be missing a specific protein known as I TK.There is a special term to describe removal of gene function to study the role of the gene.This term is ………..?Which of the following best represents the central dogma of geneexpression?a. During transcription, DNA codes for polypeptides.b. During transcription, DNA codes for mRNA, which codes forpolypeptides during translation.c. During translation, DNA codes for mRNA, which codes forpolypeptides during transcription.d. none of the above
- You are studying a new gene that is expressed within the adipose tissue of humans during the development of diabetes. Specifically, you want to learn why gene expression levels are very high in those people who develop diabetes. What DNA sequence would you concentrate on? Group of answer choices A specific response elements B the TATA box C enhancer sequences D promoter proximal elements E metal response elementsTranscription factors bind to: Question 20 options: DNA regions called cis-acting elements RNA regions called trans-acting factors DNA regions called trans-acting elements RNA regions called trans-acting elements RNA regions called cis-acting elementsWhich of the following general transcription factors aids polymerase binding in the right direction on promoters? Group of answer choices TFIID TFIIB TFIIA TFIIF
- Which of the following does not accurately describe eukaryotic transcriptional factors? a. Changes in transcriptional factor express can lead to changes in development. b. Most can regulate multiple different genes. c. They are each specific to one gene. d. Expression of different transcription factors leads to differentiation of cells.Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes, but it depends on where the transcription factor binds in the promoter b. Yes, but it depends on other proteins that might act with the transcription factor c. No, transcription factors are always either activators or repressors d. Yes, but only if a mutation happensWhat is a regulatory enhancer? Group of answer choices the protein in areas surrounding the gene a section of DNA that targets proteins for degradation and thus stops the expression of the unwanted genes a section of DNA that is involved in regulating gene expression a functionless gene copy that is the result of gene duplication Next