BRAIN STORY ACTUAL EXAM PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ the brain is considered mature around what age.
Answer: 25, the brain is not mature until our mid-twenties because
the prefrontal cortex (which enables executive function abilities)
continues to develop until this time
◉ what is the sequence in which we learn our abilities.
Answer: sensory, motor, emotional skills, executive function skills
(begin in early childhood but their sensitive period of development
continues into early adulthood)
◉ what stages of development are the most plastic and the least.
Answer: early childhood, late childhood, adolescence, adulthood, the
brain becomes progressively less plastic with age
◉ the age at which a human has the most connections between
neurons is.
Answer: 3, as the brain ages, unused connections are pruned away
and active connections are strengthened
◉ how do experiences shape the developing brain.
, Answer: they influence which neural connections are strengthened
or pruned, they help us practice our skills
◉ at what stage of development do negative experiences influence
the architecture of the developing brain.
Answer: at any stage of development, which neural circuits will be
affected depends on when the negative experience occurs
◉ most traits and diseases in humans are derived from.
Answer: the interaction between genes and environmental
influences
◉ what is an example of an epigenetic effect.
Answer: an environmental factor modifies the area surrounding a
gene such that expression decreases
◉ is manual dexterity related to the quality of parental care a child
receives.
Answer: no
◉ which gene has been shown to be epigenetically modified by the
quality of maternal care in rat offsrping.
Answer: the glucocorticoid receptor gene which is methylated in
response to maternal care
QUESTIONS WITH SOLUTIONS GRADED A+
◉ the brain is considered mature around what age.
Answer: 25, the brain is not mature until our mid-twenties because
the prefrontal cortex (which enables executive function abilities)
continues to develop until this time
◉ what is the sequence in which we learn our abilities.
Answer: sensory, motor, emotional skills, executive function skills
(begin in early childhood but their sensitive period of development
continues into early adulthood)
◉ what stages of development are the most plastic and the least.
Answer: early childhood, late childhood, adolescence, adulthood, the
brain becomes progressively less plastic with age
◉ the age at which a human has the most connections between
neurons is.
Answer: 3, as the brain ages, unused connections are pruned away
and active connections are strengthened
◉ how do experiences shape the developing brain.
, Answer: they influence which neural connections are strengthened
or pruned, they help us practice our skills
◉ at what stage of development do negative experiences influence
the architecture of the developing brain.
Answer: at any stage of development, which neural circuits will be
affected depends on when the negative experience occurs
◉ most traits and diseases in humans are derived from.
Answer: the interaction between genes and environmental
influences
◉ what is an example of an epigenetic effect.
Answer: an environmental factor modifies the area surrounding a
gene such that expression decreases
◉ is manual dexterity related to the quality of parental care a child
receives.
Answer: no
◉ which gene has been shown to be epigenetically modified by the
quality of maternal care in rat offsrping.
Answer: the glucocorticoid receptor gene which is methylated in
response to maternal care
