If a child is born with higher than normal concentrations of neurotrophins, we can assume that
A) no significant changes in brain development will occur.
B) the child will have an unusually high IQ.
C) the child's brain will experience greater than normal apoptosis.
D) the child's brain will experience less than normal apoptosis.

Question

Quizplus · Accepted Answer

Neurotrophins play a key role in promoting the survival and growth of neurons in the developing brain. Higher than normal concentrations of neurotrophins would therefore suggest that the child's brain is experiencing less than normal apoptosis, or programmed cell death. This may result in a larger number of neurons and better brain development, but it does not necessarily guarantee an unusually high IQ.

If a Child Is Born with Higher Than Normal Concentrations