<span>If one human disease is caused by a change in one codon in a gene from GAA to GUA, then this disease is the result of a mutation. Genes have mutated in such a way that only one codon in a gene is changed, so as to give rise to a certain disease in a human being. Crossing-over, meiosis error, and polypoloidy cannot produce such mistakes. </span>
Answer:
- Parents are heterozygous for the trait, and this is how they got a child with no freckles.
- The probability that the two other children will have freckles is 9/16
Explanation:
Due to technical problems, you will find the complete explanation in the attached file.
I believe option C. Composed of atoms is not a characteristic of life.
Receptor (Affector); Controller (Regulator); Action (Effector)