Question

Which mutation is harmful to the organism? A. a mutation allowing moths to camouflage better on blackened tree bark B. a mutation making Staphylococcus aureus resistant to the antibiotic methicillin C. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell D. a mutation causing uncontrolled cell division E. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

Answer 1

Answer:

The correct answer is D.

Explanation:

Mutation refers to an alteration in the nucleotide sequence of the genome found in an individual. Mutation can be beneficial, harmful or neutral. A mutation is said to be beneficial when its effects add positively to the survival of the organism. On the other hand, a mutation is described as harmful if the effects is negative or neutral if it has no negative or positive effects.

From the options given in this question, you will notice that all of them have beneficial effects with the exception of option D. A mutation that cause uncontrolled cell division is harmful and can lead to cancer.