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Mendel was able to attribute the variation observed in the offspring of his experiment to the controlled fertilization process.
Mendel was able to control pollination and, thus, the fertilization process in the pea plants used for his experiment.
Mendel was able to effectively predict the outcome with self-pollination or cross-pollination with different results coming from each. Thus, he logically concluded that the variation observed in the offspring of his crosses is due to the fact that he controlled the fertilization process.
More on Mendel's experiments can be found here: brainly.com/question/3186121?referrer=searchResults
A recombination enzyme as the highest activity at 7.5- 8 ph. Ph 5.5 -6.5 as the lowest activity. If enzyme is mix with other protein, activity enhancement only at low ph where the enzyme is not fully active. Therefore, protein that is interacting with enzyme and expands the pH spectrum at which enzyme is fully active.