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Cell Test Crosses

TermDefinition
genetic linkage the tendency of genes that are located proximal of each other on a chromosome
sex-linked traits the phenotypic expression of an allele related to the chromosomal sex of the individual
pedigree a diagram of family relationships as well as genetics
monohybrid cross hybridization using a single trait with two alleles
genotype genetic constitutin of an individual organism
recessive trait trait that can be carried in a gene without appearing
dominant trait a trait that will appear in the offspring if one parent contributes it
law of segregation principle stating that during the production of gametes the two copies of each hereditary factor segregate so that offspring aquire on factor from each parent
independent assortment formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes
dihybrid cross hybridization using two traits with two alleles each
test cross crossing an organism with dominant genotype to a recessive homozygote for a specific phenotype in order to determine dominance/recessiveness of unknown genotype
codominance a phenomenon in which a single gene has more than one dominant allele
incomplete dominance form of intermediate inheritance in which one allele for a specific trait is not completely dominant over the allele
phenotype a trait that is a consequence of the genotype
cross over occurs when two chromosomes break and reconnect to different end pieces
gene locus the specific location of a gene or DNA sequence or position on a chromosome
chromosomal theory of inheritance the idea that genes are physical in nature and are found in the chromosomes
polygenic inheritance a trait that is controlled by more than one gene locus
multiple alleles any of a set of three or more alleles, only two of which can be present in a diploid organism
Created by: kimbuteau
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