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16 Cards in this Set
- Front
- Back
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Fitness Concept
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When there is genetic variation due to mutations, some individuals in the population are genetically better suited to compete for resources.
most fit have genes making them best adapted to a particular set of conditions |
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How does natural selection work?
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requires genetic variation and leads to differential reproductive success
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What is the difference between innate and learned behaviors?
give examples.... |
innate- inborn and genetically programmed
ex: dog itching ear learned- acquired through an experience ex: cat ignoring noises (habituation) |
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What are taxes?
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an instinctual response where an animal moves towards or away a stimulus.
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Why do animals perform aggressive behaviors?
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To obtain supremacy for mates/food
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differences and similarities between mitosis and meiosis
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Differences:
Mitosis needs 1 round, meiosis, 2 Daughter Cells- mito=2, meio=4 mito daughter cells=diploid meio daughter cells=haploid genetic diversity, mito=no, mei=yes Similarities: starts diploid |
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What types of cells do
each process? (mitosis/meiosis) |
Mitosis: somatic
meiosis: gamete |
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how does the Lactobacillus bacteria causes tooth decay?
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its acidity damages tooth structures, progressively breaking them down.
Tube turns from green to yellow if you have high acidic saliva |
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the nicotine experiment.
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Subject: serratia marcescens
Variable: nicotine lethal if organism doesn't live non-lethal if bacteria only mutates color, loses pigment becoming white |
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Various versions of a gene are known as:
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alleles
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organism's physical appearance or behavior is called:
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phenotype
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why would aggressive behaviors be selected for in organisms?
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aggression caused an increase of fitness, thus higher probability to mate and pass genes down
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What releaser started series of displays in beta fish last class?
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visual stimulus of fish seeing itself in mirror
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person has 2 dominant alleles for a trait, what are they?
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homozygous dominant
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What is taxis?
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Things that cause a positive/negative reaction on an animal
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Evolution occurs within an individual
True or False? |
False
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