What is trial-and-error behavior? give an example.

Example: imagine moving a large object such as a couch into your house. You first try to move it in through the front door and it gets stuck.

Explanation:

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: