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AP BIO CHAPTER 13 Flashcards

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13478998686Hereditythe transmission of traits from one generation to the next0
13479001035VariationAny difference between individuals of the same species.1
13479003271GeneticsThe scientific study of heredity2
13479005451GenesDNA segments that serve as the key functional units in hereditary transmission.3
13479007430Gametessex cells4
13479012586asexual reproductionA reproductive process that involves only one parent and produces offspring that are identical to the parent.5
13479015809locusLocation of a gene on a chromosome6
13479018712cloneAn organism that is genetically identical to the organism from which it was produced7
13479021110sexual reproductionA reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents8
13479023192somatic cellsbody cells9
13479026402KaryotypeA display of the chromosome pairs of a cell arranged by size and shape.10
13479028541homologous chromosomesChromosomes that have the same sequence of genes and the same structure11
13479032568sex chromosomesX and Y chromosomes.12
13479035769Autosomesnon-sex chromosomes13
13479040228diploid cellHas two sets of chromosomes.14
13479040293haploid cella cell with a single chromosome set15
13479044745life cycleThe generation-to-generation sequence of stages in the reproductive history of an organism.16
13479048928Fertilizationthe action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote.17
13479048929Zygotefertilized egg18
13479050635MeiosisCell division that produces reproductive cells in sexually reproducing organisms19
13479052393Meiosis 1Homologous chromosomes separate20
13479058107meiosis 2sister chromatids separate21
13479063579alternation of generationsthe alternation between the haploid gametophyte and the diploid sporophyte in a plant's life cycle22
13479067003sporophyteDiploid, or spore-producing, phase of an organism23
13479068550SporesProduced by meiosis. Grow into haploid organisms by mitosis.24
13479075703gametophyteHaploid, or gamete-producing, phase of an organism25
13479078543synapsisPairing of homologous chromosomes26
13479082086crossing overthe exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.27
13479086483Tetradstructure containing four chromatids that forms during meiosis28
13479090784chlasmasite of crossing over29
13479094991recombinant chromosomesindividual chromosomes that carry genes derived from two different parents30
13581928202Meiosis I and Meiosis II31

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