Answer:
d. Lysine is replaced by tryptophan (nonpolar)
Explanation:
Amino acid substitutions can have varying affects on the protein function, depending on the specific substitution and the location of the substitution.
If the substitution occurs in an important region, for example an enzyme active site, then the function of the protein could be destroyed.
Additionally, if the substitution replaces the amino acid with a highly different amino acid with different properties (eg. polarity), it could alter the structure and function of the protein.
Replacing lysine (polar) with a tryptophan (non-polar) changes the properties of the amino acid at that location, whereas the other substitutions do not.
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<span>The Clean Water Act does not ensure high water quality throughout the nation because it does not have a means of enforcement.
I believe the correct option is A
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However, the cells do not burst due to the presence of the CELL WALL that provided structural support for the CELL.
The cell wall is a cell organelle that is found in plant cells only. It serves as a sort of skeleton to the cell because it gives rigidity and structural support to the cells. The cell wall is located outside the cell membrane and it is made up of cellulose. It also gives protection to the plant cells.
Answer: A.
Explanation:
The secondary growth of a plant happens in the vascular cambium. When the vascular cambium produces more tissues, it makes the stems thicker over time.
Antibiotics inhibit enzymes specific to bacteria and have no effect on vi-rally
encoded enzyme.
