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Wel come • Topic :- structural Chromosomes aberrations and there role in plant breeding presented by, shrishaila PG14AGR6066 UAS Raichur UASR shri cd 1 2. Md Ashraful Islam MBBS, MD, PhD ( USMLE completed) Assistant Professor Clinical Biochemistry Medical Genetics Coordinator a.islam@ut.edu.sa 0506487454 At the end of this lecture, students should be able to: Describe numerical and structural aberrations of autosomes. Duplication results in structural chromosomal aberrations. Numerical Chromosomal Aberration: Change in the number of chromosomes. chromosomal structural aberrations institute of biology and medical genetics of the 1st faculty of medicine. Induction of Chromosomal Aberrations by Carbamate Fungicide in Fish Clarius batrachus (Asian Catfish) Ajay Singh and Pallavi Srivastava November 2013 ISSN 2276-7118 42. Chromosomal Abnormalities PPT and PDF Free To Download: A body abnormality, disorder, anomaly, aberration, or mutation may be a missing, extra, or irregular portion of body desoxyribonucleic acid.It is from an atypical range of chromosomes or a structural abnormality in one or additional chromosomes. Chromosomal Aberrations PowerPoint PPT Presentations. Translocation of Chromosomal Aberration: Sometimes a part of a chromosome becomes detached and joins to a part of a non-homologous chromosome, thus producing translocation. Numerical Aberration has two types: Aneuploidy (Hyperploidy, Hypoploidy) Euploidy (Monoploidy, Diploidy, Polyploidy) 10/12/2016mujahid.hussain7877@gmail.com17 18. Chromosomal abnormalities may be produced by: Aneuploidy. Introduction Chromosomal aberrations (CA) are one of the important biological consequences of human expo-sure to ionizing radiation and other genotoxic agents. In normal course of cell-division cycle, the chromosomes duplicate and segregate in an orderly manner. In epidemiological studies, it has been shown that ∗ Corresponding author. All Time. Inversion is an intra-chromosomal aberration where segment of … 1. Chromosome aberration Numerical structural Variation in chromosome structure or number is called chromosomal aberration UASR shri cd 2 3. The sequence of gene loci in the chromosome also maintains an […] Show: Recommended. When translocation occurs between two non-homologous chromosomes, then it is called reciprocal translocation or … STRUCTURALABERRATION It results from chromosome breakage. Sort by: Chromosomal Aberrations - Chromosomal aberrationschanges in the chromosomes (mutations) Variations in the chromosome number. Duplications occur in a lower frequency than deletions. chromosomal aberrations (that explain chromosomal structure abnormalities). Abstract Chromosomal studies have received considerable attention, in part from a growing interest in the evaluation of genotoxicity of environmental toxicants and carcinogenns. chromosomal aberrations numerical structural Numerical Aberrations “Change in the number of chromosomes is called as numerical aberration or numerical abnormality”. “Chromosomal studies have long promised to become a kind of visible chemistry” [1]. 10/12/2016mujahid.hussain7877@gmail.com18 19. Bar eye mutation in Drosophila results in duplication in X chromosome. Translocation – Structural chromosomal aberrations It is a kind of a chromosomal abnormality in which the interchange of the chromosomal segments occurs. 6. CLASSIFICATIONOF CHROMOSOMAL ABERRATIONS Structural Chromosomal Aberration: Change in the structure of chromosomes. The mechanics signify chiefly a rearrangement through loss, gain or reallocation of chromosomal segments. Dr. Ashraf. 1. 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