Mutation occurs and the GGA coden is changed to GGA. What effect does the substitution have on the amnio acid?

Biology

1 answer:

dlinn [17]3 years ago

5 0

Answer:

The replacement of a base at a codon, as occurs when the GGA codon is changed to CGA, causes a change in the amino acid glycine to arginine.

Explanation:

Nitrogen base changes in a codon usually result from base changes in the DNA before transcription into messenger RNA, called point gene mutations.

In the case presented, the substitution of the guanine base by cytosine in the GGA codon —resulting in a CGA codon— generates a change in the coding amino acid, resulting in arginine instead of glycine.

The change of an amino acid in a peptide or protein can mean an alteration in the structure or function of these molecules.

Because an amino acid can be encoded by several codons, changes of a nitrogen base at a codon sometimes do not involve changes in the amino acid sequence of a protein.

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Q. In an ________ solution, red blood cells ________. Group of answer choices:

Hyposmotic, lose water and shrivel
Isomotic, have a normal shape ✔️
Isosmotic, swell and may burst
Hyperosmotic, have a normal shape
Isosmotic, lose water and shrivel

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In an isosmotic solution, red blood cells have normal shape.

Option B

<h3>Explanation:-</h3>

Osmosis : The movement of the solvent or water molecules from a solution of their higher concentration to a solution of lower concentration through a semipermeable membrane.

❍ Depending upon the osmotic concentration, There are three types of solution and their result when cell is keot inside them: