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small change in the DNA of a single gene
change in DNA that caused sickle cell disease
A change in DNA sequence caused by a mistake is called a mutation.
A change in the DNA sequence caused by a mistake in DNA replication or exposure to radiation or chemicals is called mutation.
Tuberculosis is a disease caused by the bacterium Mycobacterium tuberculosis. It is not caused by a virus.
Mutation
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some kind of African frog can change it's sex that is the DNA that caused it
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. So, yes.
Depends Really...Hmm.. Hard Question.
A hereditary disease is carried because one of the parents has broken DNA (meaning, the DNA is not normal and the loss of one part of the DNA caused the hereditary disease), and that broken DNA is copied to every cell in the body, and when the two sex cells join together, there is broken DNA in one of the sex cells, thereby officially passing the hereditary disease to the next child.
The pathogenic DNA from the dead bacteria became active when combined with the DNA in the live bacteria. When injected into the mice, this reactivated DNA caused the disease and the mice died.