Based on the information in the stimulus materials, which of the following choices explains why domesticated horses and takhi horses have different body styles? Select two answers. Select one or more:
A. The takhi horse has adapted tothe environment of captivity.
B. The takhi horse’s genes mutated in the 1960’s causing it to appear different than domesticated horses.
C. Humans have been breeding the domesticated horse over thousands of years to exhibit certain traits.
D. Humans have been breeding the takhi horse for hundreds of years to exhibit certain traits.
E. The takhi horse has adapted to the environment of the Mongolian steppe.

How are gene and protein sequences used to classify organisms?

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays