Which statement best describes how radiation causes mutations? * Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly.
Radiation triggers DNA replication, and the cell produces two identical DNA molecules.
Radiation breaks down DNA bonds, and the bonds remain broken.
Radiation triggers DNA replication and splits the complementary base pairs.

Heredity has an impact on personal health, but environmental factors are important as well. select the best answer from the choices provided

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Asegment of dna that codes for rna and a protein is a