What difference could one amino acid make to one big protein

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria

Nucleic acids offer variability because they contain alternate forms of genes called .