Every cell contains all of the DNA for an organism. What controls when and how specificgenes are expressed?Genes are not controlled, all genes are expressed all the timeGene expression is controlled by sequences in the DNAGene expression is controlled by proteinsGene expression can be controlled by proteins and sequences in the DNAO 000

Gene expression includes the transcription of DNA into mRNA followed by its translation into…

Answered: Every cell contains all of the DNA for…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter12: Genes And Cancer

Section: Chapter Questions

Problem 8QP

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Which of the following can occur when genes are not expressed properly? it can result in uncontrolled cell growth, forming tumors the DNA of the cell will be destroyed by RNA only the proteins needed by the specific cell are created genes will create carbohydrates instead of proteins
Cap, EA1, and Sap are all genes and are also proteins. For each gene, what gene product is encoded and where is the gene aka literal DNA sequence and located physically in the cell? I need help for each one cap what gene product is encoded and location Ea1 what gene product is encoded and location Sap what gene product is encoded and location
Your friend sends you two cancerous cell lines to examine and determine possible mutations. The results are shown below: Cell Line Mutation WT none (wild type DNA) 1 a deletion at the same region on both copies of chromosome 4 a point mutation in a gene on only one copy of chromosome 7 Based on this data, what type of geńe is mutated in each of the cell lines? Select all that apply O Cell line 2 has a mutation in an oncogene Cell line 1 has a mutation in a tumor suppressor gene Cell line 1 has a mutation in an proto-oncogene Cell line 2 has a mutation in a tumor suppressor gene
DNA regions that are syntenic (i.e., exhibit synteny) between humans and mice would be expected to be which of the following? Pick one. Be expressed in the same type of tissue Be present at some non-chromosomal location such as mitochondrial DNA Have one or more additional copies elsewhere in the genome Have the same genes in the same order
Match each example of mutation to the correct effect on function. Hypomorphic mutation Hypermorphic mutation Antimorphic mutation Neomorphic A deletion results in the loss of part of a protein and the protein retains some of its normal activity. A mutant allele makes a protein with increased cataytic activity. A mutant form of a transcription factor binds new DNA sequences to activate different genes. A mutant from of a receptor protein interferes with the function of the wild-type receptor through heterodimerization.
Some mutations or changes in the sequence of DNA, do not have any offect on the characteristics of the organism. Why Is this? The protein from this mutated sequence deactivated by the cell The mutated sequence still codes for the same amino acid The cell recognizes mutations and ignores them when expressing the gene The immune system repairs the mutated sequence during development
Which of the following is a method through which cells can control their gene expression? Increase a gene's stability using post-translational modifications Epigenetic modifications of the DNA or histones to regulate DNA avilability phosphorylation of thymidines formation of crosslinks between the DNA strands and the histones
The following is true about epigenetic gene control: O epigenetic changes to the chromatin may result from childhood development epigenetic changes to the chromatin may result from chemicals in the environment O epigenetic changes to the chromatin may result in cancer O An example of a chromatin change is DNA methylation that prevents gene expression from that area of the DNA
Asap
What is the advantage of using the neo gene to disrupt the function of a gene in knockout mice? The neo gene produces an antibiotic that kills unwanted cells The neo gene produces a toxin that inhibits transcription off the target gene The neo gene facilitates homologous recombination The neo gene is the right size for disabling other genes The neo gene provides a selectable marker for finding cells that contain the disabled gene
Imprinted genes are A- usually methylated B- methylated and not replicated C- not replicated D- usually methylated and not expressed E- not expressed
Dystrophin is a protein that forms part of a vital protein complex that connects the cytoskeleton of a muscle fiber cell to the extracellular matrix. This connection strengthens and shapes the muscle fibers. Dystrophin is coded by the DMD gene. This is one of the longest human genes known, covering 2,300,000 base pairs (0.08% of the human genome) It is located in chromosome 21. The immature mRNA is 2,100,000 bases long and takes 16 hours to transcribe. It contains 79 exons. The mature mRNA measures 14,000 and codes for a protein with 3,685 amino acids. Abnormal expression of dystrophin leads to severe symptoms like muscle weakness and fatigability, a disease that is called muscular dystrophy. Most patients with muscular dystrophy become wheelchair dependent early in life. Cardiac muscle is also affected which results typically in premature death (~ second or third decade of life). Several mutations in this gene have led to the production of low levels of dystrophin or of a defective,…

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