Answer: Mutation. The allelic variations that make evolution possible are generated by the process of mutation, but new mutations change gene frequencies very slowly, because mutation rates are low. Assume that the gene allele A1 mutates to allele A2 at a rate m per generation and that at a given time the frequency of A1 is p.
Explanation:
Answer:
Claire's diagnosis may show the absence or a very small amount of proteolytic enzymes in her small intestine.
Explanation:
Claire's diagnosis may explain the slow digestion of proteins due to the absence or decrease of proteolytic enzymes in the small intestine. That's because these enzymes must be present in the small intestine in amounts suitable for the protein digestion process to be rapid, as a digestion process, through enzymes must be. This is because enzymes are responsible for speeding up the metabolic processes, if there is a lack of enzymes, the metabolic processes become slower.
Answer:
The difference between granites and basalts is in silica content and their rates of cooling. A basalt is about 53% SiO2, whereas granite is 73%. Intrusive, slowly cooled inside the crust.
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Answer:
Aerobic to lactic acid fermentation pathway
Explanation:
ATP, which is the usable form of energy in living cells, is obtained via a process called RESPIRATION. However, aerobic respiration requires a constant supply of oxygen to occur. Hence, during an intense exercise where the supply of oxygen is low, the muscle cell has to switch from the respiration pathway that requires oxygen to one that doesn't.
Fermentation is a kind of cellular respiration that does not require oxygen to occur. In the muscle cells of animals (humans inclusive), lactic acid is the product of the fermentation process, hence, it is called LACTIC ACID FERMENTATION. This means that the muscle cells, in a low supply of oxygen, will switch from AEROBIC to LACTIC ACID fermentation pathway.
B.cannula,chemically stimulation of cells recording from neurons.