NATS 1670 Study Guide - Midterm Guide: Smallpox, Breast Cancer, Phenotype

• School: York University
• Department: Natural Science
• Course: NATS 1670
• Professor: Motti Anafi

Document Summary

20% of cancers are inherited from mom and dad. Breast cancer genes which can be inherited - brca 1 & brca 2 (80% chance of getting breast cancer) Any tar or smoke is bad for you. When the world was formed, 4. 6 billion years ago. In the last years before small pox was eradicated, 300 million people were killed by small pox. Phenotype- the visible traits that are coming from gene. Genotypes & phenotypes are not always working together. Lack of ability of cell to prevent cancer creates cancer cells.