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16 Cards in this Set
- Front
- Back
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What is a factor that controls a trait?
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Gene
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What is an alternate form of a gene?
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Allele
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What are combinations of alleles, ex. XX, Xx, and xx?
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Genotype
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What is the outward appearance of a trait?
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Phenotype
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What is the term when both alleles are the same? (XX, or xx)
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Homozygous
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What is the term when both alleles are different? (Xx)
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Heterozygous
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What is the trait expressed in a heterozygote Xx called?
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Dominant
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What is the trait not expressed in a heterozygote called?
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Recessive
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What is a cross with a homozygous recessive called?
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A Test Cross
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What is a cross back to a parent called?
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Back Cross
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What most likely led to Mendels success?
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His study of mathematics
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Why were sweet peas good test plants?
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They were true breeding lines, and they self pollinated
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What is Mendels First Law?
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The Law of Segregation
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What are the five steps in the method of science?
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1) Ask a Question
2) Design an Experiment 3) Observations 4) Make a Model 5) Test that Model |
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What was the ratio that Mendel noted from the F-2 generation?
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3:1
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How did Mendel test his model?
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He allowed the F-2 generation plants to self pollinate, which would produce 33% true breeding round plants.
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