• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Bio 130 – Quiz April 4
Bio 130 – Quiz April 4

Cancer Genomics - support.illumina.com
Cancer Genomics - support.illumina.com

Mutation - Teacherpage
Mutation - Teacherpage

... • Mutations happen in all organisms, if it happens in a somatic cell then only the individual is affected. ...
ICGCW 2014
ICGCW 2014

... pace. Cancer Genetic services are being offered in many hospitals. Several private and academic labs have started offering genetic tests for several clinically relevant genes and using a range of technology platforms from Sanger sequencing to Next Gen Sequencing. To gain insight in this fast evolvin ...
Cancer Prone Disease Section Hereditary pancreatic cancer Atlas of Genetics and Cytogenetics
Cancer Prone Disease Section Hereditary pancreatic cancer Atlas of Genetics and Cytogenetics

How Things Go Wrong
How Things Go Wrong

... genes, chromosomes, mitosis, meiosis, heredity, and DNA replication. What similarities and differences exist in these functions of these processes? Where are the potential places for mutations? What type of mutations might have affected human evolution? How? Have groups discuss these ideas and expla ...
Mitosis and cancer - Florida State College at Jacksonville
Mitosis and cancer - Florida State College at Jacksonville

... Read “Mitosis in a nutshell” and scroll down to see more detailed diagrams 13) During which stage of mitosis does the nucleolus disappear? _____________________ 14) During which stage of mitosis do the sister chromatids separate (so that each chromosome looks “V” shaped instead of “X” shaped)? ...
Causes, Risk Factors, and Prevention
Causes, Risk Factors, and Prevention

Genetic Variation Mutations
Genetic Variation Mutations

... is based on the accumulation of many mutations. Gene flow is any movement of genes from one population to another and is an important source of genetic variation. Sex can introduce new gene combinations into a population. This genetic shuffling is another important source of genetic variation. ...
Mutations - Northwest ISD Moodle
Mutations - Northwest ISD Moodle

8.7 Mutations - Perry Local Schools
8.7 Mutations - Perry Local Schools

GENE MUTATIONS
GENE MUTATIONS

GENE MUTATIONS - mrbemrose / FrontPage
GENE MUTATIONS - mrbemrose / FrontPage

Genetic Mutations
Genetic Mutations

...  They may have little or no effect on the survival of an organism or on its ability to reproduce.  They may result in the same kind of organism - ...
Biological and clinical heterogeneity of breast cancer
Biological and clinical heterogeneity of breast cancer

Founder mutations: evidence for evolution?
Founder mutations: evidence for evolution?

... Studying the prevalence of this haplotype in various populations has led to the conclusion that the founder lived in Central Europe between 60 and 70 generations ago and was probably of Celtic origin. This mutation has been carried through space and time in that European’s descendants to now include ...
Title - Tufts University
Title - Tufts University

... The Wnt family of secreted proteins is essential for normal embryonic development, as well as self renewal and differentiation of adult tissues. Mutations in the Wnt signaling pathway (for example, APC) are well documented in promoting the initiation of colon cancer. Interestingly, mutations in the ...
Gene Section PPP1R9B (protein phosphatase 1, regulatory subunit 9B)
Gene Section PPP1R9B (protein phosphatase 1, regulatory subunit 9B)

Cause and effect of mutation
Cause and effect of mutation

... • The gametes are as old as an individual female is • Genetic errors in female gametes increase over time • Older females have a greater risk of chromosome abnormalities • Paternal age does not increase the risk of chromosome abnormalities as males produce new gametes throughout their lifetime ...
Congenital Bilateral Absence of the Vas Deferens – an Overview
Congenital Bilateral Absence of the Vas Deferens – an Overview

p53 gene mutation: software and database
p53 gene mutation: software and database

Albert Szent-Györgyi Prize for Progress in Cancer Research
Albert Szent-Györgyi Prize for Progress in Cancer Research

... Cavenee is a Fellow of the National Foundation for Cancer Research and has won many honors, including the Charles S. Mott Prize of the General Motors Cancer Research Foundation. He is a member of the National Academy of Sciences, a former president of the American Association for Cancer Research, a ...
pa0705014 - Wichita State University
pa0705014 - Wichita State University

... different hormones had differing effects on different breast and ovarian cancer cell lines. Another avenue of research that has been pursued involves the thyroid hormone receptors and genetic variations that may be associated with breast cancer. A study by Silva et al. suggests that deregulation of ...
Mutation - La Salle University
Mutation - La Salle University

Irina Roznovat - Genomics complexity
Irina Roznovat - Genomics complexity

... cancer appearance is highly increased in these families. Based on these assumptions, the heredity factor will be an extension of the gene framework presented here. Another further inclusion is represented by data on viral and bacterial infections in human tumours. Their significant impact in cancer ...
< 1 ... 30 31 32 33 34 35 36 37 38 ... 58 >

BRCA mutation



A BRCA mutation is a mutation in either of the BRCA1 and BRCA2 genes, which are tumor suppressor genes. Hundreds of different types of mutations in these genes have been identified, some of which have been determined to be harmful, while others as benign or of still unknown or uncertain impact. Harmful mutations in these genes may produce a hereditary breast-ovarian cancer syndrome in affected persons. Only 5-10% of breast cancer cases in women are attributed to BRCA1 and BRCA2 mutations (with BRCA1 mutations being slightly more common than BRCA2 mutations), but the impact on women with the gene mutation is more profound. Women with harmful mutations in either BRCA1 or BRCA2 have a risk of breast cancer that is about five times the normal risk, and a risk of ovarian cancer that is about ten to thirty times normal. The risk of breast and ovarian cancer is higher for women with a high-risk BRCA1 mutation than with a BRCA2 mutation. Having a high-risk mutation does not guarantee that the woman will develop any type of cancer, or imply that any cancer that appears was actually caused by the mutation, rather than some other factor.High-risk mutations, which disable an important error-free DNA repair process (homology directed repair), significantly increase the person's risk of developing breast cancer, ovarian cancer and certain other cancers. Why BRCA1 and BRCA2 mutations lead preferentially to cancers of the breast and ovary is not known, but lack of BRCA1 function seems to lead to non-functional X-chromosome inactivation. Not all mutations are high-risk; some appear to be harmless variations. The cancer risk associated with any given mutation varies significantly and depends on the exact type and location of the mutation and possibly other individual factors.Mutations can be inherited from either parent and may be passed on to both sons and daughters. Each child of a genetic carrier, regardless of sex, has a 50% chance of inheriting the mutated gene from the parent who carries the mutation. As a result, half of the people with BRCA gene mutations are male, who would then pass the mutation on to 50% of their offspring, male or female. The risk of BRCA-related breast cancers for men with the mutation is higher than for other men, but still low. However, BRCA mutations can increase the risk of other cancers, such as colon cancer, pancreatic cancer, and prostate cancer.Methods to diagnose the likelihood of a patient with mutations in BRCA1 and BRCA2 getting cancer were covered by patents owned or controlled by Myriad Genetics. Myriad's business model of exclusively offering the diagnostic test led to Myriad growing from being a startup in 1994 to being a publicly traded company with 1200 employees and about $500M in annual revenue in 2012; it also led to controversy over high prices and the inability to get second opinions from other diagnostic labs, which in turn led to the landmark Association for Molecular Pathology v. Myriad Genetics lawsuit.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report