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they can be both if the mutant gene causes the organism to have a new property which improves its life it is helpful and evolution occurs since due to natural selection offspring having the mutant quality will be produced.
on the other hand if a mutant gene causes a deformity, or a weakness it is harmful. for example cancer cells, which eventually form a tumour are the result of mutation
What else can I help you with?
Helpful?
If you need help I recommend you type in the specific question you need help with
Is salt helpful or harmful?
it can be helpful or harmful
Are mangroves helpful or harmful?
sometimes they are helpful and harmful.
Is sandpaper helpful or harmful?
Sandpaper is both helpful and harmful.
Are stick bugs helpful or harmful to the environment?
they are helpful not harmful to plants
Are crickets harmful or helpful?
helpful
Are caterpillars helpful or harmful?
helpful
Are polar bears harmful or helpful?
Depends on what part of "harmful" or "helpful" you are referring to.
What are some harmful and helpful bacteria?
Harmful bacteria will harm you. Helpful bacteria will help you.
Genes whos effect does not normally occur unless certain enviormental factors are present?
Genes whose effect does not normally occur unless certain environmental factors are present are Conditional mutant. The mutant that has a wild type phenotype under certain environmental conditions and a mutant phenotype under other conditions.
Is slash and burn helpful or harmful?
Slash and burn does not sound helpful, it sounds harmful.
Harmful or helpful effect of polybags?
helpful
