biology 3.06.docx - Biology 3.06 Mutations are changes made to the genetic code Some changes may have an impact on the new cells and it could be either

biology 3.06.docx - Biology 3.06 Mutations are changes made...

This preview shows page 1 out of 1 page.

Biology 3.06Mutations are changes made to the genetic code. Some changes may have an impact on the new cells and it could be either positive or negative one. In some cases the changes are minor or without a big significance. Those changes may affect the whole chromosome or just one gene. The new cells would have different genetic information that would be passed down on new cells. We are given a table from a study done in 2007. This study compares women diagnosed with BRCA1 or BRCA2 and their different outcomes and treatment options. From this table I can conclude that BRCA1 is more dangerous because there were more deaths after diagnosis, women were diagnosed at earlier age and also there were more women diagnosed with BRCA1. Women diagnosed with BRCA1 have higher death rate of 18%.In this table all our subject had a history of breast cancer in the family. It is very likely that their received the predisposition for breast cancer from their genetic pool. We cannot make exact conclusion about how and from whom the gene was transferred to the study’s subjects. There are several different treatments for breast cancer including radiation, chemotherapy. Some peoplechoose to have a preventative mastectomy if they have a genetic predisposition. I would need to see a table or a graph showing how many patients were diagnosed with cancer despite having the preventative surgeries and also the rate of survival for them. From our available data we can conclude that BRCA1 mutation affects people at younger age. People without either mutation were diagnosed at later age, opted to have most preventative surgeries and hadmuch lesser percentage of death compare to BRCA1 but more died compare to BRCA2 mutation. This might be also age related and not because of the mutation. To be able to get a better answer we would also need to see the age of the patient that died and their survival rate after diagnosis and treatment. Learning about mutations and heredity we cannot really eliminate all cancer genes in the population. Wecan eliminate cancer on some patients but they still have offsprings and they already may have children also and the genetic pole is being passed down. There also might be new cases caused by mutation and environmental causes bringing up new cases of breast cancer.
Background image

You've reached the end of your free preview.

Want to read the whole page?

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors