How Ras mutations are often found in cancers. Another protein that is often mutated in cancers is PTEN, an enzyme that hydrolyses PIP3, generating PIP2. Mutations that inactivate PTEN are found in 75% of gliomas. Suggest why inactivating mutations of PTEN are selected for in cell lineages leading to cancer.

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Why would satellite imagery be more useful than a map in some instances? check all that apply. provides landmarks such as buildings is an overhead view of earth’s features can be used when internet is not available provides small details of roads for digital maps provides various methods of transportation to a location

Explain why the plants cortex would serve as the best food source for animals