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Biology Chapter 14 Test Flashcards

Stone's Biology Test on chapter 14!

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678705763KaryotypeA picture of an organism's chromosomes0
678705764Chromosomes that determine the sex of an organismSex chromosomes1
678705765What are the sex chromosomes?X and Y2
678705766___ Determines sex of babyDad3
678705767Body Cells =Somatic Cells4
678705768Genetic disorders result in what?They result in changes in the DNA code so that non-functioning proteins are produced.5
678705769Examples of Autosomal Recessive genetic disordersPKU, Tay-Sachs Disease, Cystic Fibrosis, Albinism6
678705770Full name of PKUPhenylketonuria7
678705771Cause of PKUMutation in gene for an enzyme that breaks down an amino acid called phenylalanine.8
678705772Build up causes..Mental retardation9
678705773PKU Patients should avoid what food?Proteins10
678705774Tay Sachs Disease causeMutation in a gene for an enzyme that breaks down a kind of lipid in the developing brain. Causes early death11
678705775Tay Sachs is found more commonly in people of what descent?Jewish, Mediterranean, and Middle Eastern ancestry.12
678705776Cystic Fibrosis CauseLoss of 3 DNA bases in a gene for the protein that transports CI- ions so salt balance is upset13
678705777What does CF lead to?It leads to respiratory and digestive complications, and increased susceptibility to infections14
678705778CF is found more commonly in what people?Caucasians15
678705779AlbinismCauses a lack of pigment in skin, hair, and eyes.16
678705780How do biologists make a karyotype?They make one by photographing a cell in mitosis, cutting the chromosomes from the picture and grouping them together into pairs17
678705781What does a pedigree chart show?It shows the relationships within a family18
678705782What is the advantage for being heterozygous for the sickle cell allele?People heterozygous for that allele are generally healthy & have the benifit of being resistant to Malaria19
678705783All _______ Alleles are expressed in males, even if they are recessiveX-Linked20
678705784What is a Barr Body?It is a dense region in the nucleus that is formed by the turning off of the X Chromosome21
678705785What is Downs Syndrome also called?Trisomy 2122
678705786Mutation in the blood clotting protein makes this person unable to stop bleeding after an injuryHemophilia23
678705787Mutation in hemoglobin causes red blood cells to change shape and clog up blood vessels.Sickle cell anemia24
678705788Mutation that causes mental retardation if foods containing phenylalanine are eatenPKU25
678705789Three #21 Chromosomes are present causing mental retardationDown Syndrome26
678705790Mutation in ion channel protein causes thick mucus to clog up lungs and digestive organsCystic Fibrosis27
678705791Gradual deterioration of the brain that appears during middle ageHuntington's Disease28
678705792Progressive weakening of muscle proteins resulting in inability to walk and eventually early deathMuscular Distrophy29
678705793Inability to distinguish between the colors red and greenColorblindness30
678705794Only on X and no Y chromosomeTurner's Syndrom31
678705795THREE X-Linked DisordersMuscular Distrophy, Colorblindness, Hemophilia32
678705796What is PKUAutosoml recessive33
678705797What is Downs SyndromeAutosomal chromosomal34
678705798What is sickle cell anemia?Autosomal Codominant35
678705799What is Klinefelter's Syndrome?sex chromosome chromosomal disorder36
678705800What is Huntington's?Autosomal Dominant37
678705801Males with an extra X chromosme (XXY or XXXY) some female features; infertilityKlinefelter Syndrome38
678705802Build up of lipids in the brain the causes blindness, retardation, and early deathTay-Sach's Disease39
678705803Autosomal Dominant DisordersHuntington's or Achondroplasia (Dwarfism)40
6787058043 Disorders that are Autosomal Recessive?PKU, Tay Sachs, CF41
6787058053 Disorders that are caused by chromosomal disorders?Down's, Turner's, Klinefelter's42
678705806ABO Blood type codes for how many different alleles?3. IA, IB, and i43
678705807RH Blood type codes for how many possible alleles?RH+ and RH-44
678705808Can germ cell mutations be passed on to offspring?YES!45
681392121what are the 2 sex chromosome chromosomal disordersturners, klinefelter's46

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