Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Transcribed Image Text:You are asked to participate in a clinical trial for a new drug that can activate telomerase. Cancer is a possible risk of such a drug.
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- Options for answers in the above picture - pick one. A. H-NS B. IHF C. Histone H1 D. DPS E. Fisarrow_forwardI need help with these questions I’ve completed for biology homework. So basically it says “A company was testing a new drug it thought it would help decrease the risk of transmission of virus from mother to fetus. In an experiment to test the drug, an investigator gave 400 pregnant female rats a small dose of the experimental drug and inocululated each type of virus known to causes disease in rats. At the same time, 400 other pregnant rats were given only the virus. All rats were given the same food and kept in similar cages. Of the rat pups born to females that received both the virus and the drug. 203 showed no symptoms of the disease; 205/rat pups born to the virus-only females showed symptoms. I wrote down the hypothesis I said the drug will decrease the rate of transmission of the virus from mother to fetus Then I wrote down independent/dependent which was the drug being independent and the transmission of virus being dependent Then I wrote the controlled variables…arrow_forwardplease helparrow_forward
- True or false, if false please explain whyarrow_forwardThis quarter in lab, you have studied two different technologies that allow us to modify the genome of a cell: transformation and CRISPR. In your own words, briefly describe two differences between these technologies. (For example, these can be differences between their outcomes, procedures, reagents, or something else.) Please respond in 2-4 sentences.arrow_forwardThe diagram shown represents the coding strand of the myosin gene. Mutations in myosin can lead to muscle defects during development. Using what you know about how mutations can affect transcriptional and post-transcriptional regulation, match the results shown on the Northern (mature mRNA) to the mutations shown. The N lane shows the size and amount expected for non-mutated myosin mRNA. All samples were loaded at the top (-) side of the gel. Part 1. Which lane or lanes on the gel could be the result of mutation A? --4 ТАТАА AUG UAA Only known regulatory region TSS Mutation B: Mutation C. A: 5-base 20 nucleotides 3 nucleotides deletion deleted changed N 1 2 3 4 5arrow_forward
- Ras is a proto-oncogene that is within the EGF pathway. The EGF receptor can activate the cell division pathway only when the EGF ligand binds to the receptor. A gain of function mutation occurs in only one copy of the Ras gene. What are all the possible consequences of this? Select all that apply. Group of answer choices The cell will undergo constant cell division The cell will still be normal as only one copy of Ras is mutated. Both copies must be mutated for the cell to undergo constant cell division There will be an increase of EGF ligands present in the cell The EGF receptor will always be active even with no EGF ligands bound and activate the pathway Ras will always be active and activate the proteins downstream that will turn on cell division Ras will be under the influence of the EGF receptor and will only activate if the EGF ligand is bound to the receptorarrow_forwardImagine that you are a scientist who wants to better understand the genetic mechanisms underlying cancer. Match each of the experiments with the model oryanism that would best help build foundational knowledge for understanding cancer in humans. Mus musculus Saccharomyces cerevisiae Arabidopsis thaliana Answer Bank determining how radiation affects growth in the presonce of a mutated IRCAI oritolog anensing viability and analyring tumor development in transgenic lines containing BRCA/ and BRCA2 mutations analyring how analogous cancer-oontrolling genes and ultraviolet B (UV-B) adaptive loci are selated to stress esponses stimulating and inhibiting cell division cycle penes to determine the effect on cell proliferationarrow_forwardIn cancerous cells, CpG islands are: where intercalating agents are found demethylated methylatedarrow_forward
- The chemical carcinogen dimethybenzialanthracene (DMBA) must be an extraordinarily specific mutagen since 90% of the skin tumors it causes have an A-to-Talteration at exactly the same site in the mutant Ras gene is true or falsearrow_forwardThe diagram shown represents the coding strand of the myosin gene. Mutations in myosin can lead to muscle defects during development. Using what you know about how mutations can affect transcriptional and post-transcriptional regulation, match the results shown on the Northern (mature mRNA) to the mutations shown. The N lane shows the size and amount expected for non-mutated myosin mRNA. All samples were loaded at the top (-) side of the gel. Part 1. Which lane or lanes on the gel could be the result of mutation A? ТАТА AUG UAA Only known regulatory region TSS Mutation B: Mutation C. 3 nucleotides 20 nucleotides deleted A: 5-base deletion changed 1 2 4 5 lane 1 lane 2 lane 3 lane 4 lane 5 OOO0Oarrow_forwardHELP WITH THIS QUESTIONarrow_forward
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