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Arial Corbel Wingdings Calibri Times Air 1_Air 2_Air 3_Air Nondisjunction disorders Human male karyotype, written as ...
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A gene is active only on the Barr body chromosome-XIST ... Use x-over rates in progeny to plot relative position of genes on chromosomes- Linkage Map.
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Polyploidy results from non-disjunction of chromosomes during meiosis. 1) Autopolyploidy ... Hybridization followed by non-disjunction ...
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... 47XXY Nondisjunction Nondisjunction Turner Syndrome = 45XO Chromosomal Mutations Chromosomal Mutations Nondisjunction Aneuploidy: incorrect # chromosomes ...
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4.4 Abnormal Meiosis Nondisjunction Disorders
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The Effects of Genetics Diseases due to Chromosomal Abnormalities and DNA mutations Nondisjunction Nondisjunction occurs when homologous chromosomes fail to separate ...
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Splitting and regenerating (anemones, marine worms) Reproducing without ... Gametogenesis. Nondisjunction. Nondisjunction. Location of Primordial Germ Cells ...
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Human Genetic Disorders Harmful or Beneficial? Human Genetic Disorders Mutations are key DNA change change in alleles Chromosomal errors nondisjunction Deletion ...
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Chapter 6: Chromosome Mutations *Chromosome mutations/aberrations Variation in chromosome number: *aneuploidy *euploidy *polyploidy Nondisjunction Homologous ...
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Inheritance Patterns & Human Genetics Ch.12 Sex-Influenced Traits Presence of sex hormones influences expression of these traits Ex: Pattern baldness Nondisjunction ...
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Down syndrome. Result of nondisjunction. Nondisjunction ... Down Syndrome (Trisomy 21) 1 in 800-1,000 births. Large tongue. Flat face ...
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Types of Chromosome Mutations Aneuploidy (2n +/- m) Aneuploids differ from wild-type individuals by part of a chromosome set. Nondisjunction is a common mechanism for ...
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... transmitted by genes or chromosomal aberrations, that may be heritable ... NONDISJUNCTION (Chromosomal numerical ... I. MORPHOLOGIC/ STRUCTURAL ...
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Defects in Chromosome Structure. translocations. deletions, duplications. Chromosome Nondisjunction. XX. X. X. nondisjunction. nondisjunction. XX. XX. N. N ...
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Color blindness is a sex-linked trait in humans. In humans, the X chromosome has ... Pedigree analysis. Nondisjunction. Turner's Syndrome. Klinefelter Syndrome ...
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Human Genetics. Diseases Caused by Nondisjunction. Definition. Sample Problems. Down Syndrome ... Restriction fragment length polymorphisms (RFLPs) Autosomal ...
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Types of Genetic Mutations Main Types Base Substitutions Gene Rearrangements Nondisjunction Base Substitutions Also known as point mutations, result when one ...
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Transmission Genetics-Turner's Syndrome. Nondisjunction sperm leads to 45XO karyotype ... Transmission Genetics-Klinefelters Syndrome. 47 XXY karyotype ...
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Mitosis and Meiosis Review When does nondisjunction occur? (during what phases) Anaphase I or Anaphase II True or False? During telophase, a nuclear envelope ...
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There are many steps between genotype and phenotype; genes cannot ... Nondisjunction and translocations can occur. 1. 2. Mutations: Heritable Changes in Genes ...
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What happens when Meiosis Goes WRONG?? When homologous chromosomes fail to separate it is called nondisjunction Abnormal # chromosomes will make their way into ...
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Nondisjunction. Turner syndrome. N-DJ of the sex chromosomes egg or sperm is produced with no sex chromosome. Individual is 45 XO ...
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Alterations of chromosome number, nondisjunction, aneuploidy, monosomy, trisomy, ... When the mother is a dominant homozygote, the daughters will have the normal ...
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Affect parts of a chromosome rather than whole thing. Reciprocal translocations ... In diploids: Results in either half OR no normal gametes. Nondisjunction in ...
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... of trisomy involves three copies of chromosome 21 and is called Down syndrome. Down's Syndrome ... syndrome. In males, nondisjunction causes Klinefelter's ...
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Nondisjunction: gamete gets extra or less chromosome (Down Syndrome- Trisomy 21) ... Down Syndrome: trisomy-21. Kleinfelter's syndrome: XXY. Patau syndrome: trisomy-13 ...
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effects of Down Syndrome vary greatly from person to person but can include mild ... Down Syndrome. Kleinfelter's (XXY) results from nondisjunction of the sex ...
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Meiosis I separation of homologous chromosomes (in 4-5 steps: prophase I, metaphase I, anaphase I, ... Nondisjunction. Karyotype. Spermatogenesis & Oogenesis ...
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Meiosis ... Diploid= set of chromosomes from each parent= 2n ... nondisjunction. polyploidy. Results in more than the usual number ...
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... has down syndrome. 46. 23. 23. Mosaic Downs. Nondisjunction ... Translocation down syndrome. Lethal. Translocation downs. Lethal. Trisomy 14 lethal. Normal ...
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Caused by nondisjunction of the sex chromosomes. Characteristics of Turner's Syndrome: ... gene that causes a mutation on chromosome 4 ... gene on chromosome 7 ...
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Gametes have one set of chr. This is called haploid cell ... Nondisjunction results in gamete with extra chr. If other gamete is normal zygote will have 2n 1 ...
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Genetic Mutations
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Karyotyping - TypePad ... Karyotyping
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Title: Genetics Lesson 2: Mistakes in Meiosis Author: Victor and Molly Last modified by: Victor and Molly Document presentation format: Custom Other titles
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Chromosomal Mutations & their effects Karyotype A picture of the chromosomes of an individual or a species, including number, form, and size of the chromosomes.
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... ICHTHYOSIS CONGENITA Brittle, leathery skin with deep bleeding fissures A recessive lethal allele with no obvious heterozygous phenotype.
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Mistakes in Meiosis Including Mutations & Non-disjunction What is a Gene? A gene is the basic unit of heredity in a living organism Genes hold the information to ...
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... Trisomy 21 (Down), Trisomy 18 (Edward), Trisomy 13 ... Jacob syndrome individual ... 2. 5% of Down syndrome result of translocation between chromosomes 21 ...
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Cytogenetics Chromosomal Disorders 50% of 1st trimester miscarriages 5% of stillbirths 0.5% of liveborns Down syndrome trisomy 21 Fragile X syndrome Somatic cell ...
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Title: Cat-Eye Syndrome Author: SWHS Last modified by: monika.martin Created Date: 4/19/2001 8:17:33 PM Document presentation format: On-screen Show (4:3)
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Genetic Mutations Mutations Mutations: changes in the DNA They may not change the individual in a way that impacts their reproductive success or They can be damaging.
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Chromosomal Disorders Amniocentesis Single Chromosome Disorders Deletion Genetic material is missing 2. Duplication Genetic material is present twice 3.
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Title: Dragonfly Chapter 14 Author: Troy High School Last modified by: ckirkpatrick Created Date: 12/7/2006 12:02:29 AM Document presentation format
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Week 11 CHROMOSOMES Chapter 10 pages 180-186 Genetics I Chapter 11 pages 189-201 Summary X-some NUMBER changes Autosomal Monosomy Trisomy Sex x-some XO XY Female XXY ...
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Title: 14-2 Human Chromosomes Author: Kelso Last modified by: Craig Kelso Created Date: 3/25/2002 6:04:52 AM Document presentation format: On-screen Show (4:3)
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Chromosome Disorders Prenatal Diagnosis Amniocentesis A small sample of the amniotic fluid surrounding the baby is removed using a syringe. The fluid contains skin ...
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Human Heredity. Vocabulary. Karyotype. Sex chromosome. Autosome. pedigree. What are the types of chromosomes in a karyotype. 46 chromosomes = 23 from dad. 23 from mom ...
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... Wheat and Wolverines all have 42 chromosomes Karyotypes A karyotype is a picture of an organisms chromosomes It allows us to study the difference of shape, ...
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The women are sterile and their sex organs do not develop at puberty. ... The Human Genome Sex chromosome = one of two chromosomes that determine an individual s ...
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Karyotypes and Sex-Linked Traits What is a karyotype? Picture of your chromosomes Arranged from largest to smallest quickly identify chromosomal changes http://www ...
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CHROMOSOMAL ABNORMALITIES By Dr Samina Anjum s particular translocation is interesting because * * CAUSES OF BIRTH DEFECTS & SPONTANEOUS ABORTIONS ARE Chromosomal ...
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Human Genetics Chapter 14 Human Chromosomes How many kinds of chromosomes do humans have? 23 How many chromosomes do humans have? 46 (23 from each parent) What are ...
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This type of mutation can be passed to the zygote and show up in ... the resulting gametes has an extra chromosomes while the other gamete lacks a chromosome. ...
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Mutations * * * * * * * * * * * * * * * * * * * What Are Mutations? Changes in the nucleotide sequence of DNA May occur in somatic cells (aren t passed to offspring ...
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Chromosomal Mutations & their effects Karyotype A picture of the chromosomes of an individual or a species, including number, form, and size of the chromosomes.
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