A) Identify a signaling molecule from the model presented. Explain how receptors play a role in cell differentiation.

B) Identify the dependent variable and two controls the experimenters used when conducting this

experiment.

C) Evaluate if the number of Variant 1-Type cells with mating projections was significantly different

from those of the Wild Type. Use chi-square analysis.

D) Scientists propose that a mutation has occurred that either changed the mating pheromone or

receptor site on the Variant 1-Type yeast cells. Predict where the mutation occurred. Justify

your prediction with evidence from the experiment and scientific reasoning, based on your

knowledge of cell-signaling pathways.

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation:

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.