Amutation occurs at the midpoint of a gene, altering all amino acids encoded after the point of mutation. which mutation could have produced this change? deletion of two nucleotides insertion of twelve nucleotides insertion of six nucleotides deletion of three nucleotides

Deletion of two nucleotides.

Explanation:

Every amino acid coded by 3 nucleotides.

12:3=4 (amino acids)

6:3=2 (2 amino acids)

3:3=1 (1 amino acid)

After all of these mutations sequence amino acids change, but after continues stay the same.

Only deletion of 2 nucleotides will completely altered all amino acids encoded without mutation.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: