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18 Cards in this Set
- Front
- Back
nulls
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Mutant alleles that produce either no protein product or one that exists but is nonfunctional.
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leaky mutations
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mutant alleles that produce proteins showing some low residual function.
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allelic series
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complete set of known alleles of one gene
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haplosufficient
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describes a gene that, in a diploid cell, can promote wild-type function in only one copy (dose)
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haploinsufficient
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describes a gene that, in a diploid cell, cannot promote wild-type function in only one copy (dose)
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full, or complete, dominance
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the homozygous dominant cannot be distinguished from the heterozygote
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incomplete dominance
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describes the general case in which the phenotype of a heterozygote is intermediate between those of the two homozygotes
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codominant
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the expression in a heterozygote of both the phenotypes normally shown by the two alleles
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Clover is common name for which genus? What is the V pattern on their leaves called?
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Trifolium, chevron
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lethal alleles
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mutant alleles that are capable of causing the death of an organism
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temperature sensitive (ts) mutations
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their phenotype is wild type at the PERMISSIVE TEMPERATURE (often room temperature), but mutant at the RESTRICTIVE TEMPERATURE.
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PAH cofactor
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tetrahydrobiopterin
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harebell plant genus
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Campanula
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double mutant
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genotype with mutant alleles of two different genes
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epistatic mutation
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mutation at one locus which overrides another in a double mutant
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hypostatic
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a mutation at one locus which is overridden by a mutation at another
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suppressor
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mutant allele at one gene that reverses the effect of a mutation of another gene, resulting in a wild-type or near wild-type phenotype (205)
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revertants
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wild type organisms that are merely reversals of the original mutational event (205)
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