Answer:
It is a replacement that has an important effect on protein function because Arg and Gln are residues with different chemical properties.
Explanation:
In this case, Arginine (Arg) is a basic and positively charged residue, while Glutamine (Gln) is an uncharged (neutral) amino acid. Non-conservative substitutions like that are generally expected to have deleterious effects and they are generally removed by natural selection. Moreover, Arg is also a target for phosphorylation, which is the most important posttranslational modification. Phosphorylation is known to be capable of causing the activation of different proteins, especially kinases, and, therefore, the mutation at Arg109 might also inactivate the active site of this protein.
The answer is b. The ability of all living things to maintain a relatively stable internal environment
True. Please Mark Brainliest!!!
Energy, growth, evolutionary and ecological describe different biological life cycle. Life cycle involves all those living organisms in the earth. Life cycle involves energy that every living organisms need, growth that every living organism undergo, evolution and ecological.
NON-SPECIFIC: Skin, Macrophages, Mucous, Fever
SPECIFIC: B cells, T cells, Antibodies (aka: immunoglobins)
