Symptoms and causes of Down's syndrome? -Biology

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Related questions

Description : .In human beings 45 chromosomes/single X/XO abnormality causes (a) Down’s syndrome (b) Kinefelter’s syndrome (c) Turner’s syndrome (d) Edward’s syndrome

Last Answer : (c) Turner’s syndrome

Description : Would it be hard for a prosperous, handsome man to fall in love with a woman with Downs' Syndrome?

Last Answer : Maybe she has a sweet, loving nature, which he could value and cherish. The things that connect people aren’t always obvious to the rest of us, but they can be very powerful.

Description : Are Down's Syndrome people happier than other people?

Last Answer : answer:The question is understandable. It often seems that they are happier based upon brief interactions and what is portrayed on television and movies. Down Syndrome is not a disease. It is a genetic ... parents. It is an opportunity to not only learn more about DS but make some new friends.

Description : What would you think of someone who suggested that the Korean infants she saw looked like they might have Downs syndrome?

Last Answer : I would ask what are her qualifications to know what she’s assuming.

Description : A couple, both severely retarded/down's syndrome/etcetera: should society literally prevent them from having children?

Last Answer : Your other question was easier. Neither of them are able to take care of the child?

Description : Apart from monkeys or the ape family, in what other species has Down's syndrome been detected?

Last Answer : Mice can have downs as well and science is using them to study the issue. It is caused by the presence of all or part of an extra 21st chromosome.

Description : I'm over 35, I'm only in my early pregnancy, I'm 7 weeks old, but I'm really scared. I want to have a great baby, we have been waiting for it for a long time, 1.5 years and I don't know what if ...

Last Answer : You shouldn't have to worry so much in advance, but of course I understand. Be sure to discuss with your partner what you want. It must be a responsible decision by two people.

Description : People with Down's syndrome invariably affected by: (1) Huntington's disease (2) Alzheimer's disease (3) Meningitis (4) Brain haemorrhage

Last Answer : (2) Alzheimer's disease Explanation: The best-known and most common chromosome abnormality in humans is Down's syndrome, a condition associated with an extra chromosome 21. Down's syndrome individuals ... develop this disease in their fourth or fifth decade of life, much sooner than other people

Description : Webbed neck is a characteristic of – (1) Down's syndrome (2) Turner's syndrome (3) Klinefelter's syndrome (4) Cri-du-chat syndrome

Last Answer : (2) Turner's syndrome Explanation: A webbed neck, or pterygium colli deformity, is a congenital skin fold that runs along the sides of the neck down to the shouldersit is a feature of Turner ... Syndrome (TS) is a condition in which a female is partly or completely missing an X chromosome.

Description : In Down’s syndrome of a male child, the sex complement is (a) XO (b) XY (c) XX (d) XXY.

Last Answer : (b) XY

Description : Down’s syndrome is due to (a) crossing over (b) linkage (c) sex-linked inheritance (d) non-disjunction of chromosomes.

Last Answer : (d) non-disjunction of chromosomes.

Description : An abnormal human male phenotype involving an extra X-chromosome (XXY) is a case of (a) Edward’s syndrome (b) Klinefelter’s syndrome (c) intersex (d) Down’s syndrome.

Last Answer : (b) Klinefelter’s syndrome

Description : .In which of the following diseases, the man has an extra X-chromosome? (a) Turner’s syndrome (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Haemophilia

Last Answer : (b) Klinefelter’s syndrome

Description : .A person with the sex chromosomes XXY suffers from (a) gynandromorphism (b) Klinefelter’s syndrome (c) Down’s syndrome (d) Turner’s syndrome.

Last Answer : (b) Klinefelter’s syndrome

Description : Mongolian Idiocy due to trisomy in 21st chromsome is called (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Triple X syndrome

Last Answer : (a) Down’s syndrome

Description : Which of the following is a correct match? (a) Down’s syndrome - 21st chromosome (b) Sickle cell anaemia - X-chromosome (c) Haemophilia - Y-chromosome (d) Parkinson’s disease - X and Y chromosome

Last Answer : a) Down’s syndrome - 21st chromosome

Description : .Christmas disease is another name for (a) haemophilia B (b) hepatitis B (c) Down’s syndrome (d) sleeping sickness.

Last Answer : a) haemophilia B

Description : Down’s syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder? (a) 100% (b) 75% (c) 50% (d) 25%

Last Answer : (c) 50%

Description : A woman with 47 chromosomes due to three copies of chromosome 21 is characterised by (a) superfemaleness (b) triploidy (c) Turner’s syndrome (d) Down’s syndrome.

Last Answer : (d) Down’s syndrome.

Description : .Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/linkage? (a) Erythroblastosis fetalis - X-linked (b) Down’s syndrome - 44 autosomes + XO (c) Klinefelter’s syndrome - 44 autosomes + XXY (d) Colour blindness - Y-linked

Last Answer : (c) Klinefelter’s syndrome - 44 autosomes + XXY

Description : .Down’s syndrome in humans is due to (a) three ‘X’ chromosomes (b) three copies of chromosome 21 (c) monosomy (d) two ‘Y’ chromosomes.

Last Answer : b) three copies of chromosome 21

Description : Pick out the correct statements. (1) Haemophilia is a sex-linked recessive disease. (2) Down's syndrome is due to aneuploidy. (3) Phenylketonuria is an autosomal recessive gene disorder. (4) Sickle cell anaemia is an X- ... are correct. (c) (1) and (4) are correct. (d) (2) and (4) are correct.

Last Answer : (b) (1), (2) and (3) are correct.

Description : .A disease caused by an autosomal primary non- disjunction is (a) Klinefelter’s syndrome (b) Turner’s syndrome (c) Sickle cell anaemia (d) Down’s syndrome.

Last Answer : (d) Down’s syndrome.

Description : What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia and is sterile? (a) Down’s syndrome (b) Turner’s syndrome (c) Klinefelter’s syndrome (d) Edward syndrome

Last Answer : Klinefelter’s syndrome

Description : The most striking example of point mutation is found in a disease called (a) Down’s syndrome (b) sickle cell anaemia (c) thalassaemia (d) night blindness.

Last Answer : (b) sickle cell anaemia

Description : Which of the following cannot be detected in a developing fetus by amniocentesis? (a) Down’s syndrome (b) Jaundice (c) Klinefelter’s syndrome (d) Sex of the fetus

Last Answer : (b) Jaundice

Description : In context of amniocentesis, which of the following statements is incorrect? (a) It can be used for detection of Down’s syndrome. (b) It can be used for detection of cleft palate. (c) It is usually done when a woman is between 14-16 weeks pregnant. (d) It is used for prenatal sex determination.

Last Answer : (b) It can be used for detection of cleft palate

Description : Which of the following conditions is not associated with periodontal destruction in primary teeth: a. Down’s syndrome. b. Steven Johnson’s syndrome. c. Hypophosphatasia. d. Papillon. Lefebvre syndrome. e. Cyclic neutropenia.

Last Answer : b. Steven Johnson’s syndrome.

Description : Which of the following is NOT characteristic of Down’s syndrome? A. Decreased neutrophil function B. Macroglossia C. Macrodontia D. An increased susceptibility to periodontal disease E. Congenitally missing teeth

Last Answer : C. Macrodontia

Description : Hypodontia can be seen in: A. Cleidocranial dysplasia “dysostosis” B. Down’s syndrome C. Papillon fever syndrome D. Rickets

Last Answer : B. Down’s syndrome

Description : Which of the following conditions is not associated with periodontal destruction in primary teeth: A. Down’s syndrome B. Steven Johnson’s syndrome C. Hypophosphatasia D. Papillon-Lefebvre syndrome E. Cyclic neutropenia

Last Answer : B. Steven Johnson’s syndrome

Description : Which of the following is NOT characteristic of Down’s syndrome? A. Decreased neutrophil function B. Macroglossia C. Macrodontia D. An increased susceptibility to periodontal disease E. Congenitally missing teeth

Last Answer : C. Macrodontia

Description : Typical features of Down’s syndrome (Mongolism) do not include: A. Multiple immunodeficiencies B. Sever caries but minimal periodontal disease C. Susceptibility to infections D. Multiple missing teeth and malocclusion E. Hepatitis B carriage in institutionalised patients

Last Answer : B. Sever caries but minimal periodontal disease

Description : 28 years old woman with previous history of having baby with Down's Syndrome is now 12 weeks pregnant. Which of the following would you suggest to her: a) Amniocentesis. b) Obstetric ... sampling. d) Fetal blood sampling. e) Wait till eighteen weeks for detailed ultrasound and amniocentesis.

Last Answer : c) Chorionic villus sampling.

Description : A disease caused by an autosomal primary non- disjunction is : (1) Klinefelter's Syndrome(2) Turner's Syndrome (3) Sickel Cell Anemia (4) Down's Syndrome

Last Answer : (4) Down's Syndrome

Description : Down's Syndrome most often results from the presence of a third copy of which chromosome?

Last Answer : ANSWER: CHROMOSOME 21

Description : How many chromosomes per cell does a Down's Syndrome (trisomy 21) victim have?

Last Answer : ANSWER: 47

Description : Webbed neck is a characteristic of (1) Down’s syndrome (2) Turner’s syndrome (3) Klinefelter’s syndrome (4) Cri–du–chat syndrome

Last Answer : Turner’s syndrome

Description : People with Down’s syndrome invariably affected by: (1) Huntington’s disease (2) Alzheimer’s disease (3) Meningitis (4) Brain haemorrhage

Last Answer : Alzheimer’s disease 

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