Quiz1 review - lecture2review 23:43:00 BucketScenario andEdgar ,DNAiskeptco

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lecture 2 review 18/01/2011 23:43:00 Bucket Scenario The bucket scenario is a model for how DNA and the environment are  constantly interacting and indivisible.  DNA is represented by Danielle while the environment is represented by Evan  and Edgar.  In the example used in lecture, DNA is kept constant but the environment is  varied with Evan representing one type of environment while Edgar  represents another, which is how scientists try to determine the relative  contribution of environment in determining a particular phenotype.  The trait we are measuring is how much water is in the bucket. The best way  to model how DNA and the environment interact is to have Danielle is in  charge of turning the faucet on and off while Evan/Edgar are in charge of  aiming it.  While they are trying to fill the bucket with water together, they talk to each  other. Bird songs and their dialects Exp1 3 birds reared in isolation and never heard the song  Hearing the adult songs is important Develop songs that are like each other but diff from the home  Exp2 isolated males tutored with Marin songs  Birds are learning what they hear but is learned with some limitation so they don’t  learn other species songs  Exp3 Tutor just another species songs  Not very well abnormal song Males copy what they hear during an early critical point of development Bird is not able to learn at anytime, learning is genetic
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This note was uploaded on 01/26/2011 for the course GE CLUSTER 72a taught by Professor Saguy during the Winter '10 term at UCLA.

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Quiz1 review - lecture2review 23:43:00 BucketScenario andEdgar ,DNAiskeptco

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