Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer? . a. double helix structure of dna. b. brca1 and brca2 genes. c. nucleic acid monomers. d. chemical composition of proteins

The discovery of BRCA1 and BRCA2 genes led to a new understanding of how genetic mutations increase the risk of cancer is. Mutations in the genes BRCA1 (breast cancer gene 1) and BRCA2 (breast cancer gene 2) increase a woman's risk of developing breast or ovarian cancer. BRCA mutations account for about 5% of all breast cancers and 4%–11% of all ovarian cancers.

The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

i am positive it is c. condensing but i may be wrong