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The physical and functional unit of heredity is known as the gene. These are made up of deoxyribonucleic acid that is DNA.
It occupies a specific location on a chromosome. In other words you can says that these are segments of deoxyribonucleic acid that contain the code for a specific protein that functions in one or more types of cells in the body.
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- Harry Potter speaks parseltongue(he can talk to snakes). Dumbledore explains that this is because harry expresses a gene than can regulate the expression of multiple language genes. based on what you learned in cell biology class, give an example of an enzyme that this gene could code for and explain in a line, how this enzyme could regulate gene expression?Genetic expression in general can be regulated at various stages. Identify specific processes that control gene expression at the: a. transcription level - b. post-transcription level - c. translation level -The process of gene expression involves:
- ") genes are atftected. PREDICT How might a mutation that affects a regulatory element, such as a promoter, transcription factor, or enhancer, affect the expression of a gene? Would the gene be expressed? If so, how might its expression change? Start Typing... DNA RNA polymerase gene enhancer TATA box promoter transcription factorsImagine you are a cell and you need to activate ("turn on") a gene as quickly as possible. What type of gene expression regulation would you use to achieve this?Given the following schematic for a gene and its associated regulatory regions, answer the following questions by placing the correct letter in the provided blanks please put in the correct letter for the questions What region would provide cell type-specific expression of genes? region What site would significantly increase gene expression rates? = region What region or regions of this gene’s coding sequence are expressed as amino acids = region
- Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional level b. epigenetic and transcriptional levels c. epigenetic, transcriptional, and translational levels d. epigenetic, transcriptional, post-transcriptional, translational, and post-translational levelsPost-translational control refers to: a. regulation of gene expression after transcription b. regulation of gene expression after translation c. control of epigenetic activation d. period between transcription and translationDescribe two different types of pre-transcriptional control of gene expression? Give an example of each type.
- Explain how DNA methylation can regulate gene expression in a tissue-specific way. When and where would de novo methylation occur,and when would demethylation occur? What would occur in the cellsthat give rise to eggs and sperm?I. The retinoic acid receptor (RAR) is a transcription factor that is similar to steroid hormone receptors. Thesubstance (ligand) that binds to this receptor is retinoicacid. One of the genes whose transcription is activatedby retinoic acid binding to the receptor is myoD. Thediagram that follows shows a schematic view of theRAR proteins produced by genes into which one oftwo different 12-base double-stranded oligonucleotides had been inserted in the ORF. The insertion site(a–m) associated with each mutant protein is indicatedwith the appropriate letter on the polypeptide map.For constructs encoding proteins a–e, oligonucleotide 1(5′ TTAATTAATTAA 3′ read off either strand) wasinserted into the RAR gene. For constructs encoding proteins f–m, oligonucleotide 2 (5′ CCGGCCGGCCGG 3′)was inserted into the gene.NH2 f g h i j k l m COOHa b c d eThe wild-type RAR protein can both bind DNA and activate transcription weakly in the absence of retinoic acid(RA) and strongly in RA’s presence. Each…Discuss in your own wordings the concept of gene expression. proper explanation and diagram