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Science in Society A2 - Nature and Nurture
Flash cards for a module of the
9
Science
Not Applicable
06/13/2010

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Cards

Term
What is the "Nature and Nurture" debate?
Definition
Are people the way they are because of genetics or because how their past experiences/enviroment?
Term
What is wrong with the news headline, "Gene for intelligence found"?
Definition
* Intelligence can take many forms and be measured in many different ways.
* There is no single gene responsible for it, it is likely to be a mixture of many genes and a person's background, experiences, edication (enviromental factors)
Term
What is the difference between a genotype and a pheonotype?
Definition
The genetic make-up of a person is their genotype (eg. a person having a dominant gene for brown eyes and a recessive genee for blue eyes.)

A phenotype is the physical characteristics that have been expressed (eg. A person having brown eyes)
Term
What is gene expression?
Definition
Gene expression is when information coded in a gene is "turned on," so that it is converted into chemicals in a cell.
Term
What is a gene regulator?
Definition
A specific kind of gene that controls whether other genes are turned on or off. This can be affected by the external enviroment.
Term
What is epigenetics?
(HARD!)
Definition
When the way genes are switched on or off is passed down to the next generation of cells. They can be inherited by offspring.
Term
What can affect whether a gene is expressed or not?
Definition
where in the body the cell is, the stage in development of the organism, epigenetics, direct influences from the external enviroment.
Term
True or false.
Babies are born with less neurons in their brains than adults. They grow more later.
Definition
False, babaies have as many neurons in the cerebral cortex they aren't connected to each other as much as in an adult brain. The connections occur later through development and adulthood depending on experiences.
Term
True or false: Everyone has the same connections between the neurons in their brains.
Definition
FALSE, it's unique to each individual and influences their behaviour and personality.
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