PLZZZ HELP Which of the following is an example of a beneficial mutation?

Inherited polyploidy causes your body to produce bacteria that will not resist antibiotics.

Spontaneous mutations produce polyploidy plants, producing larger and heartier plants.

Non-disjunction causes mutations that make some humans resistant to HIV.

Mutagens can decrease the rate at which mutations occur in an organism.

i do not know and i have a 100 in this class

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

i think the answer is a.keratin is the pigment responsible for skin color.