1. How is PKD inherited? What gene is responsible for the expression of PK enzyme ?
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- 1. How do muscle cells remain differentiated as muscle cells? 2. A mutation occurs in the Drosophila doublesex gene that prevents Tra from binding to the dsx RNA transcript. What would be the consequences of this mutation for Dsx protein expression in males? In females?1. Contrast positive versus negative regulation of gene expression. Describe the role of the repressor in an inducible system and in a repressible system.1. Why doesn't having a gene variant associated with a particular illness or disorder guarantee a person will develop the condition?
- 2. Define the term maternal effect genes, and explain whythe protein products of some of these genes are calledmorphogensWhich of the following is not true of somatic cell gene therapy? a. White blood cells can be used. b. Somatic cells are cultured, and the desired DNA is introduced into them. c. Cells with the introduced DNA are returned to the body. d. The technique is still very experimental. e. The inserted genes are passed to the offspring.How does the regulation of gene expression support continued evolution of more complex organisms? Cells can become specialized within a multicellular organism Organisms can conserve energy and resources Cells grow larger to accommodate protein production Both A and B.
- What are epigenetic modifications? the addition of reversible changes to histone proteins and DNA the removal of nucleosomes from the DNA the addition of more nucleosomes to the DNA mutation of the DNA sequenceA gene that is knocked out is ________. a. deleted b. inactivated c. expressed d. either a or bControl of gene expression in eukaryotic cells occurs at which level(s)? only the transcriptional level epigenetic and transcriptional levels epigenetic, transcriptional, and translational levels epigenetic, transcriptional, post transcriptional, translational and post translational levels
- 8. what is A mutant that prevents the production of the wild-type protein or renders it inactive. Usually a recessive mutation?2) How does the HAEIII enzyme discriminate between the C-G polymorphism in the TAS2R38 gene?1. What sequences form most of the human genome? What is their significance in the expression of genes?
