The complexity of human beings relative to other animals is probably a result of
A) the humans' higher number of genes.
B) the rate of human gene expression,particularly in the brain.
C) the rate of human gene expression,particularly in the liver and blood.
D) humans' larger numbers of imprinted genes.

Question

Quizplus · Accepted Answer

Research has shown that the complexity of human beings is likely due to the rate of gene expression, particularly in the brain. This allows for more complex cognitive functioning and behaviors. While humans do have more genes than some other animals, such as fruit flies, the difference is not significant enough to account for the vast differences in complexity. Similarly, while humans do have a larger number of imprinted genes compared to some other animals, it is not considered the main contributor to human complexity.

The Complexity of Human Beings Relative to Other Animals Is