What is a primary mechanism for the immense diversity observ

What is a primary mechanism for the immense diversity observed in complex multicellular organisms?

Question 2 options:

mutations in regulatory genes

a lack of cell walls

endosymbiosis of prokaryotes

mutations in essential genes

Solution

The levels of genetic diversity in a multicellular organism can take place majorly due to heritable mutations either in essential or regulatory genes (Promotors). These changes result in the different levels of transcription that produces functional diversity of the organisms.

Therefore, the correct options are: mutations in regulatory genes and mutations in essential genes