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Nataly [62]
4 years ago
9

Which is a way that biotechnology has Not helped society? (2 points)

Biology
1 answer:
trapecia [35]4 years ago
5 0
The correct answer is:  [C]:  
___________________________________________________________
   "<span>New, stronger bacteria have evolved that are resistant to antibiotics."
___________________________________________________________</span>
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What 2 things must occur for living things to grow?
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Use the word “capacity”in a sentence.
Afina-wow [57]

Answer:

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3 years ago
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If an enzyme's active site contains only two ionizable residues, an arginine and a glutamate (pKa's of 2.9 and 9.1, respectively
Cerrena [4.2K]

Answer:

Optimum pH= 6

Optimum pH for the given enzyme would be the average of pKa values of two amino acids (2.9 + 9.1 /2= 6)

Explanation:

The pKa represents the association constant of amino acids. It is calculated by taking the negative log value of the ratio of a dissociated acid and the conjugated base which in turn regulates the isoelectric point (pI) of the protein.

The amino acids present in the active site of the enzyme regulate the interaction of enzyme and substrate. The given enzyme contains two ionizable amino acids with pKa values of 2.9 and 9.1 respectively. Therefore, the optimum pH of the given enzyme would be 2.9 + 9.1 / 2 = 12/2 = 6.  

At pH 6, both the ionizable amino acids would serve as a good buffer with their active proton donor and proton acceptor species.

4 0
3 years ago
1. What are two ways that sexual reproduction helps create and maintain genetic diversity?
Maksim231197 [3]
The offspring would have genes from both parents instead of just one so it so it would have a better chance at adapting to their environment and survive as a species
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