Chapter 3 - Chapter 3 Study Guide Psychology 101 1 2 3 A...

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1 Chapter 3 Study Guide Psychology 101 1. 2. 3. A gene might foster the growth of brain systems in order to organize a specific behavior 4. Environmental effects turn on and off specific traits. Experiences activate genes which produce proteins which alter the neural circuits in the brain.
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1 Chapter 3 Study Guide Psychology 101     3) Genotype  -  set of genes an individual inherits Phenotype- observable properties of the body and behavioral traits 4. Meiosis produce cells that are genetically different from one another  because it only takes half of the DNA in order to receive the other half  from another meiotic  cell. 5. Genes have a better chance of surviving if they are rearranged at each  generation in many different ways to produce different types of offspring.  That means that the species has a better chance for survival 6. Dominant trait is more likely to be shown 7.  Mendel’s chart shows a 3:1 ratio between dominant traits to recessive  traits 8.  Scot and Fuller bred the basenji with the cockers ( non fearful) and to see  if the fearful gene could be passed down in to the puppies.  They even  had the puppies raised by cocker and basenji mothers and  it was proven  that fear can be passed to off  spring. 9. It is a mistake to believe that fear is just one gene many genes contribute  to the complex structure of fear Environmental effects such as isolation  from humans will also lead a non fearful pup to be fearful.  10.A language  disability that is specific to a certain family the KE’s  the 
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