Trypsinogen is split by the enzyme enterokinase to form an activated molecule of the protease trypsin. which of the following would confirm that the activation of trypsin is an example of how a positive feedback mechanism can amplify a biological process?
a) the activated trypsin enzyme can use enterokinase as a substrate
b) the trypsin produced by the reaction is capable of splitting and activating additional trypsinogen molecules
c) if levels of trypsin were to get too high, the trypsin molecules would inhibit the enzyme enterokinase
d) each mrna molecule that codes for trypsinogen can be translated repeatedly to form many peptide molecules

Use this new information to determine the parents’ genotypes (indicated by red arrows). then calculate the probabilities that the second male offspring will have each condition. drag one pink label to each pink target and one blue label to each blue target. then use the white labels to answer questions 1 and 2. labels can be used once, more than once, or not at all.

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.