Terms 9.2 Word Scramble
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Term | Definition |
genotype | the entire genetic make up of an organism; also the combo of genes for one or more specific trait |
phenotype | an organism's appearance that results from it's genotype and the environment |
homozygous | describes an individual that has identical alleles for a trait in both homologous chromosome s in a pair |
heterozygous | describes an individual that has two different alleles for a trait |
probability | the likelihood that a possible future event will occur at any given instant of the event |
monohybrid cross | a cross between a pair of individuals that involves one pair of contrasting traits |
Punnett square | a graph used to predict the results of a genetic cross |
genotypic ratio | the ratio of the genotypes that appear in offspring |
phenotypic ratio | the ratio of phenotypes produced by a cross |
testcross | the crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype |
complete dominance | a relationship in which one allele is completely dominant over the other |
incomplete dominance | a condition in which a trait in an individual is intermediate between the phenotype of the individuals two parents because the dominant allele is unable to express itself fully |
codominance | a condition in which both alleles for a gene are fully expressed |
dihybrid cross | a cross between individuals that have different alleles for the same gene |
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