It’s usually a mutation that doesn’t allow the gene to work properly. An important part of the gene can be deleted or the DNA sequence is changed in some other way (sometimes a change in just one letter of the code can break the functionality of the gene. When the cell tries to make a protein based on the mutated sequence, it produces a protein that cannot be used for any purpose in the body or it cannot produce the protein at all.
What is a dysfunction of a gene? Is it breaking chemistry?
It’s usually a mutation that doesn’t allow the gene to work properly. An important part of the gene can be deleted or the DNA sequence is changed in some other way (sometimes a change in just one letter of the code can break the functionality of the gene. When the cell tries to make a protein based on the mutated sequence, it produces a protein that cannot be used for any purpose in the body or it cannot produce the protein at all.