Polyploidy PowerPoint PPT Presentations

B. oleracea (cabbage, cauliflower, Brocolli, kale, etc.) 2n = 18 ... The creation of triploids can be accomplished by crossing a tetraploid with a diploid, ...

Hermaphrodite animals usually are polyploidy, such as flatworms, ... Human Polyploid Karyotype Usually they spontaneously abort however this one made it to full term!

Issues When Dealing with Polyploids

Gossypium hirsutum evolved in Mexico. ... Gossypium barbadense, is the second species of New World cotton. ... are found in the D-genome in Gossypium polyploids. ...

Polyploidy results from non-disjunction of chromosomes during meiosis. 1) Autopolyploidy ... Hybridization followed by non-disjunction ...

Comparative genomics of Gossypium and Arabidopsis: Unraveling the consequences of both ancient and recent polyploidy Junkang Rong, John E. Bowers, Stefan R. Schulze ...

Unbalanced gamete production *Ramsey & Schemske, 2002. Ancient vs. Neopolyploidy ... What is interesting about ancient polyploidy? ...

... Origin of the Amphidiploid Raphanobrassica Origin of Three Allopolyploid Species of Brassica Polyploidy in Animals Parthenogenesis ...

... process which involves a 1/2 reduction ... The production of sex cells First Meiotic ... Polyploidy Meiosis and Fertilization Meiosis and ...

Genetics Continued Mutations ... Inbreeding Breeding back into the same population ... Bacteria radiation Plant Ex. Polyploidy Manipulating DNA Genetic ...

Chapter 6: Chromosome Mutations *Chromosome mutations/aberrations Variation in chromosome number: *aneuploidy *euploidy *polyploidy Nondisjunction Homologous ...

Genetics Section 3 vocabulary: 1. Genetic recombination 2. Polyploidy Summary of genetics video http://www.bing.com/videos/search?q=genetic+videos&view=detail&mid ...

Chapter 10 Sexual Reproduction and Genetics Section 1: Meiosis Section 2: Mendelian Genetics Section 3: Gene Linkage and Polyploidy Genetic Recombination The new ...

Twins FRATERNAL AND IDENTICAL Not true . Twins are Not born from 2 sperm, entering the same egg that would cause a polyploidy condition (plants not animals ...

Lecture 1 Plant Genetics Overview. How plants are different from animals? Variation in quantity of DNA Polyploidy Mitochondrial Genome Chloroplast Genome

Chromosome aberration. Chromosomal number alteration. Aneuploidy. Euploidy (polyploidy) ... Structural change/chromosomes aberration ...

Sympatric speciation. Populations of a species isolate themselves. Behavior. Ecology ... Sympatric Speciation. Polyploidy. Habitat differentiation. Adaptation ...

Chapter 10 Sexual Reproduction and Genetics Section 1: Meiosis Section 2: Mendelian Genetics Section 3: Gene Linkage and Polyploidy Genetic Recombination & Genetic ...

Hexaploid: (6n) 18. Polyploidy in animals ... Hexaploid crops: bread wheat, triticale, oat, kiwifruit. Octaploid crops: strawberry, sugar cane ...

Trisomy *Condition in which one chromosome is present in three copies (2n 1) ... Patau syndrome, 47,13 Edwards syndrome, 47,18 . Down syndrome, 47,21 Polyploidy ...

Meiosis ... Diploid= set of chromosomes from each parent= 2n ... nondisjunction. polyploidy. Results in more than the usual number ...

Mutation & gene flow: add new alleles. Selection & genetic drift: alter allele ... POINT MUTATION NEW ALLELE. GENE DUPLICATION NEW GENE. POLYPLOIDY NEW SPECIES ...

Transitions = change a purine for a purine (A for G) or pyramidine for ... most mutations are neutral or deleterious, since polyploids have a whole extra ...

Long threadlike structure of DNA and associated proteins that ... Haploid - # of chromosomes in a gamete. Polypolidy - two sets of chromosomes. Polyploidy ...

Title: PowerPoint Presentation Last modified by: Kazuo Hiraizumi Document presentation format: On-screen Show (4:3) Company: Information Technolog

Sources of Variation: Mutation Recombination VII. Mutation A. Changes in Ploidy B Changes in Aneuploidy (changes in chromosome number) C. Change in Gene Number ...

Title: Chapter 15 Human Genetics Author: FA Last modified by: mhalqahtani Created Date: 3/9/2001 3:19:18 PM Document presentation format: On-screen Show

Sources of Variation: Mutation Recombination B. Aneuploidy 1. Mechanism: Non-disjunction during gamete formation During either Meiosis I or II, segregation of ...

CHROMOSOMAL MUTATIONS BY- DR.(Mrs.) T.S.KHAN (PGT BIOLOGY) Chromosomal Mutations Deletion part of the chromosome is missing Starts with breaks in the chromosome ...

often interspecific hybrids. triploids (and other odd-numbered haploid sets): often sterile ... interspecific. hybrid. genome duplication. tetraploid ...

Quantitative traits influenced by multiple genes ... (see box 5.2 pages 142-143 of the text or any introductory biology text for a description of Mendel s ...

Title: Sn mek 1 Author: Jitka Last modified by: Jitka Created Date: 3/12/2006 6:00:25 PM Document presentation format: P edv d n na obrazovce

Chapter 10 Sexual Reproduction and Genetics 10.1 Meiosis

the chromosomal basis of inheritance

... for themselves and that could be passed on to future offspring Think of a couple who were choosing their embryo for invitro fertilization Recombinant DNA ...

Chapter 10 Sexual Reproduction and Genetics 10.1 Meiosis

Honors Biology Ch. 10 Sexual Reproduction and Genetics

Chapter 16 - Variations in Chromosome Structure and Function: Chromosome structure Deletion, duplication, inversion, translocation Focus of Cytogenetics

Title: PowerPoint Presentation Author: Mary Ann Handel Last modified by: Mary Ann Handel Created Date: 1/24/2002 1:25:06 AM Document presentation format

13-1 Changing The Living World Section 13-1 Changing the Living World Selective Breeding The Wide Variety of Animals & Plants Used By Humans, Have Been Developed By ...

Title: Glencoe Biology Author: Glencoe/McGraw-Hill Last modified by: Yang Created Date: 11/3/2005 11:33:37 AM Document presentation format: Custom Other titles

How does speciation happen? Regardless of species concept, two species form a bimodal distribution of phenotypes or genotypes

Title: Molecular Pathology Author: user Last modified by: 3422 Created Date: 11/24/2005 6:32:37 PM Document presentation format: On-screen Show (4:3)

Paramecium genome duplications ... Representation of the successive duplications of the Paramecium genome. ... Pink: Paramecium - Tetrahymena thermophila. Plant ...

Deletion part of the chromosome is missing. Starts with breaks in the chromosome ... Position Effect of barring eyes in Drosophila. Chromosomal Mutations ...

Genetic Engineering Chapter 13 Selective breeding Allowing animals with certain traits to breed to produce a desired offspring. Examples: Luther Burbank (1849-1926 ...

... Gene Flow Time Passes Major Mechanism of speciation among animals ... The separation of two species due to different breeding seasons ... Hybrid Inviability ...

... ICHTHYOSIS CONGENITA Brittle, leathery skin with deep bleeding fissures A recessive lethal allele with no obvious heterozygous phenotype.

Genetic engineering is the process of modifying an organism's genetic makeup using biotechnology techniques. It entails modifying an organism's DNA in order to change or improve specific traits or qualities. Genetic engineering has numerous applications, including agriculture, health, and environmental conservation. The development of genetically modified crops, the production of pharmaceuticals and other pharmaceutical items, and the creation of genetically engineered organisms for environmental cleanup are some of the potential applications of genetic engineering. There are numerous issues over genetic engineering, including questions about safety, efficacy, and the possibility of abuse. Despite these debates, the subject of genetic engineering is progressing and has the potential to provide major advantages to humanity.

Parapatric & sympatric theories strongly depend on. reinforcement. Reinforcement ... Sympatric Speciation: Host Shift. Apple & Hawthorn maggot flies (Rhagoletis ...

Familial Down Syndrome ... Incidence of Primary Down Syndrome Increases with Maternal Age ... 1/3 normal 1/3 Down Syndrome. Human Sex Chromosome Aneuploidy ...

Biotechnology & Bioethics Should we or shouldn t we?

CHROMOSOMAL ABNORMALITIES By Dr Samina Anjum s particular translocation is interesting because * * CAUSES OF BIRTH DEFECTS & SPONTANEOUS ABORTIONS ARE Chromosomal ...

Dr. Gigi Lozano. Dept. of Molecular Genetics. UT M.D. Anderson Cancer Center. Dr. Edwin Tecarro ... Dr. Gigi Lozano. Dr. Jean Wang. NIH/NIGMS - GM59918. G1 ...

Mutations Year 11

Why are islands so ripe for Allop.& Symp speciation? A model for allopatric speciation within an island system: Isolation + Rare Dispersal (e.g. Founders) ...