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unit 3 wk. 10/11

Stack #100848

Biology wordDefinitionoriginAlternate words
allele alternative forms of a gene for each variationof a trait of an organism Gr allel, allelic, allelism, allelomorph
dominant observed trait of an organism that masks the recessive form of a trait Lt dominancy, dominance, dominantly, dominancies
recessive trait of an organism that can be masked by the dominant form of a trait Lt recessively, recessiveness, recessive character, recessional
genotype combination of genes in an organism Gk genotypic, genotypical, genotypically, genomic
phenotype outward appearance of an organism, regardless of its genes Gk phenotypic, phenotypical, phenotypically, phenothiazine
heterozygous when there are two different alleles for a trait Gk heterozygote, heterozygosity, heterozygosis, heterotypical
homozygous when there are two identical alleles for a trait Gk homozygote, homozygosis, homotypy, homotypic
meiosis type of cell division where one body cell produces four gametes, each containing half the number of chromosomes as a parent's body cell Gk meiotic, meiotically, meiosically, meiosic
crossing over exchange of genetic material between nonsister chromatids from homologous chromosomes during prophase I of meiosis; results in new allele combinations Gr crossing, crossing guard, crossjack, crossingly
diploid cell with two of each kind of chromosome; is said to contain a diploid, or 2n, number of chromosomes Gk diploic, diplodocus, diploë, diplococcus
haploid cell with one of each kind of chromosome; is said to contain a haploid or n, number of chromosomes Gk haploidic, haploidy, haploidically, haploidical
gamete male and female sex cells; sperm and eggs Gk gametangium, gametic, gametically, gametal
homologous chromosome paired chromosomes with genes for the same traits arranged in the same order Gk homologous, homolographic, homologue, homologize
fertilization fusion of male and female gametes Lt fertilizable, fertilizational, fertilize, fertilizability
zygote diploid cell formed when a sperm fertilizes eggs Gk zygospore, zygotic, zygosis, zygophyte
genetics branch of biology that studies heredity Gk genetical, genetically, genetic, genetic carrier
Created by: gregory w
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