Sometimes, changes or “mutations” occur that prevent genes from doing their job properly. Certain mutations in the BRCA genes make cells more likely to divide and change rapidly, which can lead to cancer. What are BRCA genes? What job do these genes normally do in the human body? Citation required.
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Sometimes, changes or “mutations” occur that prevent genes from doing their job properly. Certain mutations in the BRCA genes make cells more likely to divide and change rapidly, which can lead to cancer.
- What are BRCA genes? What job do these genes normally do in the human body? Citation required.
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- Discussion: (1 or 2 paragraphs with your own opinion like how Circulating Tumor DNA as Biomarkers for Cancer Detection technology can be early detector of cancer)Cancer is a genetic disease. To provide evidence that you understand cancer genes are altered in both sporadic (somatic) and inherited cancers, match the beginning and end of the sentences below to give correct statements. NOTE: there is one extra, redundant answer, do not use it. This question has partial credit, so you will still be awarded some marks even if all of your sentences are not correct. Prompts Gain of function Oncogenes Mutated forms of proto-oncogenes Examples of oncogenes Loss of function. Examples of tumor suppressor genes Tumor suppressor genes Inherited cancer The Knudson's 2-hit hypothesis Both inherited and sporadic cancers Submitted Answers Choose a match Choose a match Choose a match Choose a match. Choose a match. Choose a match Choose a match. Choose a match. Choose a match Choose a match. ▼ ▼ ▼ O protect cells from uncontrolled proliferation are; CMYC, KRAS & ErBb2 is seen in oncogenes, leading to cancer. involve Tumor suppressor genes are not involved in…* Google Translate x + re.com/courses/49703/quizzes/244266/take/questions/5315835 Understanding BAC-23 better might be the difference in curing cancer and saving millions of lives! You must sequence its genome and find the genetic code that makes the cancer curing protein. After running several tests, you have found the correct gene segment to be: GGG UCG ACA CUC UUU. Remember that bacteria are weird and their genes are made from a single strand with ribose sugar backbones! 1. Give the correct DNA template for this bacterial gene segment (GGG UCG ACA CUC UUU). ***Please use the following format or it will be marked incorrect*** Example: ABC DEF GHI JKL MNO, all caps, organized in threes with a space in between. Please make my life easier 2. Using the genetic code provided (GGG UCG ACA CUC UUU), translate this gene segment. ***Please use the following format or it will be marked incorrect*** Example: ABC DEF GHI JKL MNO, all caps, organized in threes with a space in between. Please make…
- There are three broad categories of cancer-related genes: proto-oncogenes, tumor suppressor genes, and DNA stability/repair genes. Define each of these categories and indicate which one you think the RB1 gene belongs to and why.during tumor progression, additional mutations occur within multiple cells of a tumor population, leading to multiple different clones of cells within that tumor. Some) but not all) clones may eventually metastasize, depending on the number and type of mutations that occur in those clones. true falseAlthough cancer is not a contagious disease in humans or other vertebrates, there have been rare cases in which cancers have spread from one organism to another. Describe three cases of these contagious cancers and what conditions might have led to their appearance. For an introduction to this topic, see http:// www.cancer.org/cancer/cancerbasics/is-cancer-contagious.
- Which of the following effectively describes the situation of someone with an inherited predisposition to cancer such a familial adenomatous polyposis or BRCA-associated familial breast cancer? Choose all that apply Group of answer choices None of the other answers effectively describes the situation If they get malignant cancer, somatic mutations will not have been a factor Their cancer will most likely arise in their germ cells, not their somatic cells Most cells in their body contain multiple cancer-causing mutations Every cell of their body contains a gain-of-function allele of an oncogene Every cell of their body contains a defective, loss-of-function allele of a tumor suppressor geneBenign tumors: a. are noncancerous growths that do not spread to other tissues b. do not contain mutations c. are malignant and clonal in origin d. metastasize to other tissues e. none of theseYou are in charge of a new gene therapy clinic. Two cases have been referred to you for review and possible therapy. Case 1. A mutation in the promoter of a proto-oncogene causes the gene to make too much of its normal product, a receptor protein that promotes cell division. The uncontrolled cell division has caused cancer. Case 2. A mutation in an exon of a tumor-suppressor gene makes this gene nonfunctional. The product of this gene normally suppresses cell division. The mutant gene cannot suppress cell division, and this has led to cancer. What treatment options can you suggest for each case?
- Which of the following mutations will result in cancer? a. homozygous recessive mutation in a tumor-suppressor gene coding for a nonfunctional protein b. dominant mutation in a tumor-suppressor gene in which the normal protein product is overexpressed c. homozygous recessive mutation in which there is a deletion in the coding region of a proto-oncogene, leaving it nonfunctional d. dominant mutation in a proto-oncogene in which the normal protein product is overexpressedWhat is cancer? What defects are commonly found in cancer cells? Do all cancer cells have mutations in the same genes? Explain.Tumor suppressor genes and oncogenes are implicated in carcinogenesis. However, one can predict whether a gene potentially encodes for a protein that influences carcinogenesis by examining their mutational profile. You sequence the genome of 4 cancers and identify 3 genes of interest. Which of the following genes has the best potential to an oncogene? Tumor 1 Tumor 2 Tumor 3 Tumor 4 Gene A S24F, N465T R33T T345S, G366R P367E, P368Y Gene B S34R, F360I S34R V254I S34E, T67Y Gene C S24F, I322E C255I, E344D S34E, P367E