Some steps involved in DNA replication and protein synthesis are summarized in the table below
Step A
DNA is copied, and each new cell gets a full copy,
Step B Information is copied from DNA into mRNA which leaves the nucleus.
Step C
Proteins are assembled at the ribosomes.
Step D
Proteins fold and begin functioning,
In which step would a mutation lead directly to the formation of an altered gene?
a
b
Step
Step B
Step D
Step A
d