Nondisjunction - Study guides, Class notes & Summaries

Pathophysiology Exam 1 Questions and Answers Already Passed An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. c An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. b A somatic cell that does not contain a multiple of 23 chromosomes is called: A) an aneuploid cell. B) a eup...

An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. - c An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. - b A somatic cell that does not contain a multiple of 23 chromosomes is called: A) an aneuploid cell. B) a euploid cell. C) a polyploidy cell. D) a haploid cell. - a A...

An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. - ANSWER c An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. - ANSWER b A somatic cell that does not contain a multiple of 23 chromosomes is called: A) an aneuploid cell.

Down syndrome Correct Answer-- Most common cause is Maternal nondisjunction. - Risk factors: Pregnancy in women over age 35 - Newborn has the distinctive physical features of trisomy 21, which includes upward slating of the eyes. Down syndrome is characterized by distinctive characteristics Correct Answer-nasal bridge, epicanthal folds, protruding tongue, and low-set ears. Physical exam reveals a murmur and an echocardiogram confirms a ventricular septal defect Correct Answer-Down synd...

T13 correct answers Nondisjunction; 1 in 12,000 SGA, MCA: hypotelorism, CLP, heart, brain and kidney defects RR is 1% T18 correct answers Nondisjunction; 1 in 6,000 SGA, MCA: prominent occiput, tightly clenched fingers, heart and brain defects Choroid plexus cyst on u/s RR is 1% T21 correct answers MATERNAL nondisjunction (90%); 5% translocation 21;**usually 14**; 2% mosaic T21 1 in 800 Hypotonic, heart (50%) and GI defects common Mild to moderate ID Immunodeficiency, leukemia com...

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -zygote: X...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

Pathophysiology Exam 1 Questions With 100% Verified Answers An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. - answerc An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. - answerb A somatic cell that does not contain a multiple of 23 chromosomes is called: A) an aneuploid cell. ...

Chapter: Midterm Multiple Choice 1. Which of the following cellular exchange mechanisms requires adenosine triphosphate (ATP) and the use of a carrier protein? A) Facilitated diffusion B) Osmosis C) Active transport D) Simple diffusion Ans: C Complexity: Easy Ahead: Basic Cell Function and Structure Subject: Chapter 1 Title: Cellular Function 2. What is a key determinant of osmotic pressure? A) Water B) Sodium C) Albumin D) Glucose Ans: B Complexity: Easy Ahead: Basic Cell Fu...

In regards to chromosomal mutation, nondisjunction is known as what? - Failure of homologous chromosomes to separate during cell division What is an example of an autosomal-dominant disease? - Huntington's disease What is an example of an autosomal-recessive disease? - Cystic fibrosis What is an example of an X-linked condition? - Red - green color blindness What is an example of multifactorial inheritance? - Pyloric stenosis Knowing physiologic signs of injury you might expect the follow...