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15 Cards in this Set
- Front
- Back
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Define the Principle of Dominance
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When 2 forms of the same gene are present the dominant allele is expressed.
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Contrast Phenotype and Genotype
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Phenotype is an observable and inherited trait, genotype is the arrangement of alleles which produces the trait.
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Define Complimentary Interaction
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Two genes interact to produce a phenotype that neither is capable of producing itself.
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Define Pleiotropy
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One gene affects more than one phenotype
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Define Autosomal
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A gene that is not located on a sex chromosome is said to be autosomal.
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List the Three Primary Patterns of Inheritance
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Autosomal Recessive, Autosomal Dominant, Sex-linked
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List the Four Nitrogenous Bases
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Adenine, Guanine, Cytosine, Thymine
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What makes up a Nucleotide?
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A nitrogenous base, a phosphate, and a deoxyribose sugar.
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What causes Okazaki fragments?
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On the lagging strand of DNA, Okazaki fragments appear as polymerase stops to wait for unwinding.
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What is the job of Helicase?
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Helicase unwinds and unzips the DNA double helix apparatus.
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What is the role of Ligase?
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Ligase 'stitches' together the discontinuous Okazaki fragments.
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What is the difference between a purine and a pyramidine?
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A purine is a double ringed molecule, whereas a pyramidine is a single ringed molecule.
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Map distance is equal to ___________?
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Recombination frequency.
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Define epistasis.
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A masking or suppression of a gene by another gene.
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List the three blood types, in order of Dominance.
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A and B are dominant over O, but A and B are codominant when present together...oooo..trick question.
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