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Genetics Flashcards

Genetics Review material

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697667789Alleleone of a number of different forms of a gene1
697667790Dominant Allelean allele whose trait always shows up in the organism when the allele is present2
697667792Geneticsthe branch of biology that studies heredity and variation in organisms3
697667794Genotypethe particular alleles at specified loci present in an organism4
697667797Heterozygoteconsists of one dominant and one recessive allele5
697667799Homozygoteconsists of either both dominant or both recessive alleles6
697667801Hybridan organism that is the offspring of genetically dissimilar parents or stock7
697667804Law of Independent Assortmenteach member of a pair of homologous chromosomes separates independently of the members of other pairs so the results are random8
697667806Law of Segregationfirst law of heredity stating that pairs of alleles for a trait separate when gametes are formed9
697667808Phenotypewhat an organism looks like as a consequence of its genotype10
697667809Pollinationtransfer of pollen from the anther to the stigma of a plant11
697667810Recessive Allelean allele that is masked when a dominant allele is present12
697667811Codominancesituation in which both alleles of a gene contribute to the phenotype of the organism13
697667812Incomplete Dominanceone allele is not completely dominant over the other allele14
697667813Polygenic Characteristiccharacteristics controlled by more than15
697667814each genemay have two or more alleles16
697667815Punnett Squarea chart that shows all the possible combinations of alleles that can result from a genetic cross17
697667816Gregor Mendel19th century Austrain monk, know as the father of hereditary studies18
697667817Dominant Geneone characteristic is equal to or always is visible, can;t hide19
697667818recessive Genecharacteristic that usually dominated by another characteristic, only visible if doubled20
697667820Genotypeletters represent traits21
697667822Phenotypevisible traits22
697667824What are some obervable traits?eye color, hair color, earlobes, and vison23
697667826Hybrid Traitsa trait where one gene dominates a recessive gene and the dominant triat is visible and the recessice one is not. the parent can pass along the recessive trait to their children, where if paired with another recessive gene, the recessive trait WILL be visible24
697667828Chromosomescell structures that carry hereditary information25
697667830Genesshort segments of DNA information, within chromosomes, that serve as a code for bits of hereditary information26
697667832How many chromosomes do humans have?4627
697667838How many chromosomes are donated by each parent2328
697667840What pair of chromosomes determines the sex of a person?23 rd-last set29
697667844how many pairs of chromosomes do humans have?2330
697667848what is xx?girl31
697667852What is xy?boy32
697667856Who determines the sex of child?Male- the only one that can contribute a Y chromosome33
697667860females only carryx chromosomes34
697667864Type A blood genotypeGenotypes AA & AO35
697667869Type B blood genotypeGenotypes BB & BO36
697667872Type AB blood genotypeGenotype AB37
697667875Type O-blood genotypeGenotype OO38
697667877Blood type O is the what donor?Universal39
697667879What blood type does A & B always dominate?Blood type O40
697667881Blood type AB is what?Universal Receiver41
697667883Homozygous2 identical allele for a trait.42
697667884Heterozygous2 different alleles for a trait.43
697667886co-dominanceSome alleles it is the inheritance pattern.44
697667888Trait which appears in the first generationDominant trait45
697667890A plant which contains both male and female reproductive structuresself-pollination46
697667892Tool used to visualize all the possible combinations of alleles from parents.Punnett Square47
697667894Two of these make up a gene. They are shown with capitol or lowercase letters.Alleles48
697667896An organisms appearance.phenotype49
697667898A plant with one dominant and one recessive allele.Heterozygous50
697667899When one trait is not completely dominant over another.incomplete dominance51
697667900The passing of traits from parents to offspring.Heredity52
697667902Trait which seemed to disappear and reappears in the second generation.recessive trait53
697667903The entire genetic makeup of an organism.genotype54
697667905Fertilization of one plant to another plant.cross-pollinating55
697667906A plant with two dominant OR two recessviv alleles is said to be this.Homozygous56
697667908The mathematical chance that something will happen.probability57
697667909A plant that always produces offspring with the same trait as the parent.true-breeding58
697667910Located on chromosomes and carry hereditary instructions. Each parent gives one set of these to the offspring.genes59
697667911Monk who studied pea plants - the "Father of Genetics"Gregor Mendel60

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