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33 Cards in this Set
- Front
- Back
allele
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an alternate form of a gene
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anther
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the microsporagium of an angiowperm in which pollen grains are produced
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codominance
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an inheritance relationship in which neither of the two alleles of the same gene totally masks the other
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complete dominance
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an inheritance relationship in which one allele is coninant over the other; both Bb and BB have the same phenotype
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cross-polination
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a reproductive process in which pollen from one pland is transfered to the stigma of another plant
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dominant
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referring to an allele that masks the presence of another allele for the same characteristic
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dyhybrid cross
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a cross between individuals that involves the pairing of contrasting traits
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F1 generation
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the offspring of a cross-polinated P1 generation of plants
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F2 generation
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the offspring of self-polinated F1 generation of plants
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genotype
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the genetic maieup of an organism
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genetics
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understanding how traits are passed from parent to offspring
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genotypic ratio
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the probable ratio of genotypes produced by a cross
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heredity
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the transmisssion of traits from parents fo their offspring
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hetero zugous
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refering to a gene pair in which the two alleles do not code for the same trait
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homolozygous
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refering to a gene pair in which two alleles code for the samt trait
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incomplete dominance
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an inheritance relationship that occurs when both alleles influence the phenotype
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law of independent assortment
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law stating that pairs of genes separate independently in meiosis
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law of segregation
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pairs of genes separate in meiosis and each gamete recieves one gene of a pair
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molecular genetics
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the study of the structure and function of chromosomes and genes
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monohybrid cross
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a cross between individuals that involves one pair of contrasting traits
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P1 generation
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a strain obtained through self-polination
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phenotype
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the external appearance of an organism that is determined by the individuals _______....um i didnt finish this one...so tell me what goes here.
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pheontypical ratio
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the number of times a specific phenotype occurs in a population in a single generation
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pollination
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the transfer of pollen from another to a stigma of a flowerof the same species
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probability
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the number of times an event is expected to happen divided by the number of oppurtunities for an event to happen
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punnet square
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a model used to establish the probabilities of the results of a genetic cross
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pure
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ability to always pass on a specific trait to offspring
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recessive
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reffering to an allele that is masked by the presenve ot another allel for the same characteristics
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self-pollination
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pollination involving the same flowers on the same plant, or two genetically identical plants
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stigma
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an expanded apex of a postil, supported by the style, the part of the pistil that recieves pollen
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strain
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denotes a plant that is pure for acertion trait
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test cross
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the crossing of an individuals of unknown genotype with a homologous recessive individual to determine the unknown genotype
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trait
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in genetics, a category within which alternate characteristics, such as height and eye color, can be observed
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