You are tracking three loci in the fruit fly, locis a, b, and c, and want to know whether the loci are linked and if so what their physical distances are from one another as well as the physical order they are in. to find out this information you perform a three-point testcross with a fly that is heterozygous for all three alleles. the progeny of this cross are:

What are the types of mutations, and how does each alter the encoded protein? college level answer

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.

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the