Chapter 8 Flashcards
The number of alleles for a given trait were about equal at the start of the lab.That is, for the trait “freeze reflex”, for example, there were an equal number of dominant and recessive alleles. Because of this, how many people in class probably began the simlulation as heterozygotes? 25%?, 30%, 50%, 75% , 100% How many were homozygous dominant? Homozygous recessive?
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What types of selection did you simulate this week?
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How many individuals that were homozygous recessive for both freeze reflex and disguise (camoflage) survived in most cases?
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Did the numbers of genotypes change over the generations?
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Did the allele frequencies (%) change over the generations?
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Thinking about the bright males and choosy females, what trait was selection favoring?
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Did the frequency of Bright males increase? How about choosy females? Did their numbers increase, decrease, or stay the same?
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Why wasn’t it necessary to roll dice to see if you survived for the second investigation?
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Did the allele for brightness affect the females?
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Did the allele for choosiness affect the males?
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At the end of the exercise, did females who had the alleles for choosiness (or “picky-ness”) also carry the allele for brightness?
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