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Ch. 8 Vocabulary Crossword

Across
describes a trait whose expression is masked by another trait when the alleles for both traits are present in an individual
a variation in an inherited characteristic
in a heterozygote, complete and simultaneous expression of both alleles for the same characteristic
the result of across between two true-breeding parents that express different traits for only one characteristic
a variation in a characteristic in which individuals show two, or a few, traits with large differences between them
_____ square- a visual representation of a cross between two individuals in which the gametes of each individual are denoted along the top and side of a grid, respectively, and the possible zygotic genotypes are recombined at each box in the grid
describes a trait that masks the expression of another trait when both versions of the gene are present in an individual
having two identical alleles for a given gene on the homologous chromosomes
one of two or more variants of a gene that determines a particular trait for a characteristic
Down
the underlying genetic makeup, consisting of both physically visible and non-expressed alleles, of an organism
the most commonly occurring genotype or phenotype for a given characteristic found in a population
having two different alleles for a given gene on the homologous chromosomes
a gene present on the X chromosome, but not the Y chromosome
_____ system- a species or biological system used to study a specific biological phenomenon to gain understanding that will be applied to other species
_____ dominance- in a heterozygote, expression of two contrasting alleles such that the individual displays an intermediate phenotype
the result of a cross between two true-breeding parents that express different traits for two characteristics
a variation in a characteristic in which individuals show a range of traits with small differences between them
the observable traits expressed by an organism