Question

4a. (3 pts) Mutations in the BRCA1 and BRCA2 genes are inherited in an autosomal dominant pattern. Based on Claudia's family history, explain why the genetic counselor said she had a fifty-fifty chance of inheriting the mutation. To explain your answer, assign the BRCA1 gene a letter for wild-type and mutant alleles. 4b. (1 pt) According to the National Cancer Institute, what is the lifetime risk for breast cancer in women with a BRCA1 mutation versus women with without the mutation? 4c. (6 pts) Describe one advantage and one disadvantage of using direct-to-consumer genetic medical testing. 4d. (2 pts) What is meant by the term "previvor," and what measures did Claudia undertake to reduce her cancer risk?

          4a. (3 pts) Mutations in the BRCA1 and BRCA2 genes are inherited in an autosomal dominant pattern. Based on Claudia's family history, explain why the genetic counselor said she had a fifty-fifty chance of inheriting the mutation. To explain your answer, assign the BRCA1 gene a letter for wild-type and mutant alleles.

4b. (1 pt) According to the National Cancer Institute, what is the lifetime risk for breast cancer in women with a BRCA1 mutation versus women with without the mutation?

4c. (6 pts) Describe one advantage and one disadvantage of using direct-to-consumer genetic medical testing.

4d. (2 pts) What is meant by the term "previvor," and what measures did Claudia undertake to reduce her cancer risk?

4a. (3 pts) Mutations in the BRCA1 and BRCA2 genes are inherited in an autosomal dominant pattern. Based on Claudia's family history, explain why the genetic counselor said she had a fifty-fifty chance of inheriting the mutation. To explain your answer, assign the BRCA1 gene a letter for wild-type and mutant alleles.

4b. (1 pt) According to the National Cancer Institute, what is the lifetime risk for breast cancer in women with a BRCA1 mutation versus women with without the mutation?

4c. (6 pts) Describe one advantage and one disadvantage of using direct-to-consumer genetic medical testing.

4d. (2 pts) What is meant by the term "previvor," and what measures did Claudia undertake to reduce her cancer risk?

Added by David C.

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