2. Many people believe that a mutation will always result
in the formation of a deadly
tumor, or the development
of a major body defect.
Explain why this is incorrect.

This is incorrect because not all mutations results in tumor or

development of a major body defect.

Mutation refers to the changes or alterations which occur in the

nucleotide sequence of a DNA.

AA major body defect only occurs if the change in DNA affects a particular

structure or function of the part involved. Tumor on the other hand is

formed when uncontrolled errors in mitosis during growth and

replacement of tissues.  

Read more about Mutation here link

A mutation is simply an error in the copying of DNA it generally does not have major effects. Mutations are changes in the DNA sequence.  

Tumors form by an uncontrolled error in a stage of mitosis that continue to generate cells that aren't correct and eventually lead to tumors.

Explanation: