PDF-Karyotype Chromosme

banding pattern Zoo 102 Unit III By Dr Sudhansu Sekhar Nishank Dept of Zoology Utkal University by SS Nishank Dept of Zool. Figure 12.1a The functions of cell division: Reproduction. Figure 12.1b The functions of cell division: Growth and development. Figure 12.1c The functions of cell division: Tissue renewal. Figure 12.2 Eukaryotic chomosomes. Brain Cell Karyotype of the Phlebotomine Sand FlyMar Genetics 202. Jon Bernstein. Department of Pediatrics. September 29. th. , 2015. Learning Goals – Applied Cytogenetics. Learn normal chromosome structure and nomenclature. Gain familiarity with the results of errors in Meiosis and Mitosis, how they are diagnosed and how the behave in families. DNA. Nucleic Acid macromolecule. DNA is long, thin molecule & stores genetic . information called . chromatin. Cell division requires compact structures = . chromosomes. Chromosomes . DNA . (. eukaryotic cells) coil around . Detectable using a . karyotype. or . FISH. Common at conception. (60% of first. trimester spontaneous abortions are chromosomal. anomalies). About 1/200 births (all types). Maternal Age. (especially in Down’s). Wherever you roam. And admit that the waters. Around you have grown. And accept it that soon. You'll be drenched to the bone.. If your time to you. Is worth savin'. Then you better start swimmin'. Or you'll sink like a stone. Figure 12.1b The functions of cell division: Growth and development. Figure 12.1c The functions of cell division: Tissue renewal. Figure 12.2 Eukaryotic chomosomes. Figure 19.0 Chromatin in a developing salamander ovum. Changes in the genetic material. Mutations can occur in two different types of Cells:. 1. Somatic (body) cells. 2. Gamete (sex or germ) cells. Mutations in somatic cells. Usually result in killing that body cell only.. Ms. Diana and Ms. Su’ad. Karyotype Studies. The study of genetic material does not only involve the study of genes. It also involves whole chromosomes by using images of chromosomes stained during metaphase. . : is the general morphology of the somatic chromosome. Generally, . karyotypes. represent by arranging in the descending order of size keeping their . centromeres. in a straight line.. Idiotype. : the . Assistant Professor . Department of Anatomy. KEMU. Cell architecture; structure and functions of cytoskeletal framework. Cytoskeleton . Importance . Microtubules. Microfilaments . Intermediate filaments. karyotype. is an important clinical method for diagnosing genetic disorders.  Explain why it is useful for diagnosing . monosomies. and . trisomies. .”  . (3 marks). Key Ideas. karyotype. = photograph of all the chromosomes in a cell. 171 Turner syndrome (TS) is a genetic disorder which is characterized by the complete or partial absence of the X chromosome. The incidence is 1/2500 female live births. The main clinical findings are Why do scientists look at chromosomes. ?. Scientists can diagnose or predict genetic disorders by looking at chromosomes. . This kind of analysis is used in prenatal testing and in diagnosing certain disorders, such as.