Campbell Biology 11th Edition by Lisa Urry,Michael Cain,Steven Wasserman,Peter Minorsky,Jane Reece

تمرين 14

Which of the following mutations would be most likely to have a harmful effect on an organism
A) a deletion of three nucleotides near the middle of a gene
B) a single nucleotide deletion in the middle of an intron
C) a single nucleotide deletion near the end of the coding sequence
D) a single nucleotide insertion downstream of, and close to, the start of the coding sequence