Abnormal collagen structure is seen in all of the following except (A) I-cell disease (B) Osteogenesis imperfecta (C) Menke’s disease (D) Ehlers-Danlos sydrome

Abnormal collagen structure is seen in all of the following except (A) I-cell disease (B) Osteogenesis imperfecta (C) Menke’s disease (D) Ehlers-Danlos sydrome
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The absence of lamina dura in radiographs is a feature of all of these except for:** A. Paget’s disease (hyperphosphatasia) B. Hyperparathyroidism C. Fibrous dysplasia (como querubinismo) D. Osteogenesis imperfecta E. Hyperthyroidism

Description : The absence of lamina dura in radiographs is a feature of all of these except for:** A. Paget’s disease (hyperphosphatasia) B. Hyperparathyroidism C. Fibrous dysplasia (como querubinismo) D. Osteogenesis imperfecta E. Hyperthyroidism

Last Answer : E. Hyperthyroidism

Ehlers-Danlos syndrome characterized by hypermobile joints and skin abnormalities is due to (A) Abnormality in gene for procollagen (B) Deficiency of lysyl oxidase (C) Deficiency of prolyl hydroxylase (D) Deficiency of lysyl hydroxylase

Description : Ehlers-Danlos syndrome characterized by hypermobile joints and skin abnormalities is due to (A) Abnormality in gene for procollagen (B) Deficiency of lysyl oxidase (C) Deficiency of prolyl hydroxylase (D) Deficiency of lysyl hydroxylase

Last Answer : Answer : A

Osteogenesis imperfecta?

Description : Osteogenesis imperfecta?

Last Answer : DefinitionOsteogenesis imperfecta is a condition causing extremely fragile bones.Alternative NamesBrittle bone diseaseCauses, incidence, and risk factorsOsteogenesis imperfecta (OI) is a congenital disease, meaning ... passing on the gene and the disease to their children.SymptomsAll people with OI

Which of the following is a radiographic feature of dentino-genesis imperfecta: A. Small pulp chambers and root canals, normal enamel B. Enamel is missing but dentine formation is normal C. Enamel and dentine show disturbances D. Pulp is normal but dentine is abnormal

Description : Which of the following is a radiographic feature of dentino-genesis imperfecta: A. Small pulp chambers and root canals, normal enamel B. Enamel is missing but dentine formation is normal C. Enamel and dentine show disturbances D. Pulp is normal but dentine is abnormal

Last Answer : A. Small pulp chambers and root canals, normal enamel

Zinc deficiency occurs commonly in (A) Acrodermatitis enteropathica (B) Wilson’s disease (C) Xeroderma pigmentosum (D) Menke’s disease

Description : Zinc deficiency occurs commonly in (A) Acrodermatitis enteropathica (B) Wilson’s disease (C) Xeroderma pigmentosum (D) Menke’s disease

Last Answer : Answer : D

Which of the following statements about Menke’s disease are true. (A) It is an inherited disorder of copper metabolism (B) It occurs only in males (C) Plasma copper is increased in it (D) Hair becomes steely and kinky in it

Description : Which of the following statements about Menke’s disease are true. (A) It is an inherited disorder of copper metabolism (B) It occurs only in males (C) Plasma copper is increased in it (D) Hair becomes steely and kinky in it

Last Answer : Answer : C

Menke’s disease (Kinky or steel hair disease) is a X-linked disease characterized by (A) High levels of plasma copper (B) High levels of ceruloplasmin (C) Low levels of plasma copper and of ceuloplasmin (D) High level of hepatic copper

Description : Menke’s disease (Kinky or steel hair disease) is a X-linked disease characterized by (A) High levels of plasma copper (B) High levels of ceruloplasmin (C) Low levels of plasma copper and of ceuloplasmin (D) High level of hepatic copper

Last Answer : Answer : C

Menke’s disease is due to an abnormality in the metabolism of (A) Iron (B) Manganese (C) Magnesium (D) Copper

Description : Menke’s disease is due to an abnormality in the metabolism of (A) Iron (B) Manganese (C) Magnesium (D) Copper

Last Answer : Answer : D

Ceruloplasmin is absent in (A) Cirrhosis of liver (B) Wilson’s disease (C) Menke’s disease (D) Copper deficiency

Description : Ceruloplasmin is absent in (A) Cirrhosis of liver (B) Wilson’s disease (C) Menke’s disease (D) Copper deficiency

Last Answer : Answer : B

Chromosome designation of Turner sydrome is : (1) 44A+XO (2) 44A+XXX (3) 44A+XXY (4) 44A+XYY

Description : Chromosome designation of Turner sydrome is : (1) 44A+XO (2) 44A+XXX (3) 44A+XXY (4) 44A+XYY

Last Answer : 44A+XO

Which of the following is a recognised feature of abetalipoproteinaemia? 1) a high serum cholesterol 2) palmar xanthomas 3) advanced atherosclerotic vascular disease 4) abnormal red blood cell morphology 5) severe mental retardation

Description : Which of the following is a recognised feature of abetalipoproteinaemia? 1) a high serum cholesterol 2) palmar xanthomas 3) advanced atherosclerotic vascular disease 4) abnormal red blood cell morphology 5) severe mental retardation

Last Answer : Answers-4 Acanthocytes are seen in abetalipoproteinaemia. Retinitis pigmentosa is seen in abetalipoproteinaemia. Mental retardation is not present but motor abnormalities and neurodegenerative are seen.

Fibronectin has binding sites for all of the following except (A) Glycophorin (B) Collagen (C) Heparin (D) Integrin receptor

Description : Fibronectin has binding sites for all of the following except (A) Glycophorin (B) Collagen (C) Heparin (D) Integrin receptor

Last Answer : Answer : C

Ascorbic acid is required to synthesise all of the following except (A) Collagen (B) Bile acids (C) Bile pigments (D) Epinephrine

Description : Ascorbic acid is required to synthesise all of the following except (A) Collagen (B) Bile acids (C) Bile pigments (D) Epinephrine

Last Answer : Answer : C

All of the following are glycoproteins except (A) Collagen (B) Albumin (C) Transferrin (D) IgM

Description : All of the following are glycoproteins except (A) Collagen (B) Albumin (C) Transferrin (D) IgM

Last Answer : Answer : B

All the following statement about hydroxyproline are true except (A) There is no codon for hydroxyproline (B) It is present in large amounts in collagen (C) Free proline cannot be hydroxylated to hydroxyproline (D) Hydroxylation of proline residues is catalysed by a dioxygenase

Description : All the following statement about hydroxyproline are true except (A) There is no codon for hydroxyproline (B) It is present in large amounts in collagen (C) Free proline cannot be hydroxylated to hydroxyproline (D) Hydroxylation of proline residues is catalysed by a dioxygenase

Last Answer : Answer : D

All the following cells produces collagen except :-

Description : All the following cells produces collagen except :-

Last Answer : All the following cells produces collagen except :- A. Osteoblast B. Chondroblast C. Fibro blast D. Mast cells

Factors that decrease collagen synthesis include all of the following except: A. Protein depletion. B. Infection. C. Anemia. D. Advanced age. E. Hypoxia.

Description : Factors that decrease collagen synthesis include all of the following except: A. Protein depletion. B. Infection. C. Anemia. D. Advanced age. E. Hypoxia.

Last Answer : Answer: C DISCUSSION: Collagen synthesis, an integral part of wound healing, is affected by many local and systemic factors. Protein depletion impairs fibroplasia. Hypoproteinemia leads to diminution of ... more than any other factor, wound infection is associated with the risk of wound failure

Chemotactic factors are produced by EXCEPT: D A. Lymphocytes B. Monocytes C. Endothelial cells D. Collagen

Description : Chemotactic factors are produced by EXCEPT: D A. Lymphocytes B. Monocytes C. Endothelial cells D. Collagen

Last Answer : Collagen

Amelogenesis imperfecta?

Description : Amelogenesis imperfecta?

Last Answer : DefinitionAmelogenesis imperfecta is a tooth development disorder in which the teeth are covered with thin, abnormally formed enamel.Causes, incidence, and risk factorsAmelogenesis imperfecta is ... and protect them from damage.Expectations (prognosis)Treatment is often successful in protectin

Epitheliogenesis imperfecta ligua bovis is a defect in which tongue is A A. Abnormally smooth B. Normally smooth C. Abnormally rough D. All of these

Description : Epitheliogenesis imperfecta ligua bovis is a defect in which tongue is A A. Abnormally smooth B. Normally smooth C. Abnormally rough D. All of these

Last Answer : Abnormally smooth

Dentinogeneses imperfecta develops in: A. Initial stage (number alteration) B. Proliferation stage (forma y tamaño) C. Histodifferentiation stage D. Morphology stage (forma y tamaño)

Description : vDentinogeneses imperfecta develops in: A. Initial stage (number alteration) B. Proliferation stage (forma y tamaño) C. Histodifferentiation stage D. Morphology stage (forma y tamaño)

Last Answer : C. Histodifferentiation stage

A patient has improperly formed DEJ, reduction in size of pulp chamber, chipping and attrition of enamel that would MOSTLY be: A. Fluorosis B. Amelogenesis imperfecta C. Dentinogenesis imperfecta

Description : A patient has improperly formed DEJ, reduction in size of pulp chamber, chipping and attrition of enamel that would MOSTLY be: A. Fluorosis B. Amelogenesis imperfecta C. Dentinogenesis imperfecta

Last Answer : C. Dentinogenesis imperfecta

Delayed eruption of at least part of the dentition is a recognised feature in:** A. Dentino-Genesis imperfecta B. Anhidrotic ectodermal dysplasia (oligodontia, anodontia , conic teeth) C. Rickets

Description : Delayed eruption of at least part of the dentition is a recognised feature in:** A. Dentino-Genesis imperfecta B. Anhidrotic ectodermal dysplasia (oligodontia, anodontia , conic teeth) C. Rickets

Last Answer : C. Rickets

Which of the following anomalies occurs during the initiation and proliferation stages of tooth development A. Amelogenesis imperfecta (developmental defect) B. Dentinogenesis imperfecta (developmental defect) C. Enamel hypoplasia (AI type) D. Oligodontia E. Ankylosis

Description : Which of the following anomalies occurs during the initiation and proliferation stages of tooth development A. Amelogenesis imperfecta (developmental defect) B. Dentinogenesis imperfecta (developmental defect) C. Enamel hypoplasia (AI type) D. Oligodontia E. Ankylosis

Last Answer : D. Oligodontia

Abnormal chain of amino acids in sickle cell anaemia is (A) Alpha chain (B) Beta chain (C) Delta chain (D) Gama chain

Description : Abnormal chain of amino acids in sickle cell anaemia is (A) Alpha chain (B) Beta chain (C) Delta chain (D) Gama chain

Last Answer : Answer : B

Abnormal chain of aminoacids in sickle cell anemia is (A) β-chain (B) β-chain (C) γ-chain (D) r-chain

Description : Abnormal chain of aminoacids in sickle cell anemia is (A) β-chain (B) β-chain (C) γ-chain (D) r-chain

Last Answer : Answer : B

Collagen vascular disease?

Description : Collagen vascular disease?

Last Answer : DefinitionCollagen is a tough, glue-like protein that makes up 30% of body protein. It shapes the structure of tendons, bones, and ... nodosaRheumatoid arthritisSclerodermaSystemic lupus erythematosusSymptomsSymptoms of collagen vascular disease may include:AnemiaFeverJoint inflammationWeakness

During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize. b) Promotion During promotion, repeated exposure to promoting agents causes the expression of abnormal genetic information even after long latency periods. c) Initiation During this first step, initiators such as chemicals, physical factors, and biologic agents escape normal enzymatic mechanisms and alter the genetic structure of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Description : During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and ... of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Last Answer : a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize.

Marfan’s syndrome results from a mutation in the gene coding: (A) Collagen (B) Elastin (C) Fibrillin (D) Keratin

Description : Marfan’s syndrome results from a mutation in the gene coding: (A) Collagen (B) Elastin (C) Fibrillin (D) Keratin

Last Answer : Answer : B

A deficiency of copper effects the formation of normal collagen by reducing the activity of which of the following enzyme? (A) Prolyl hydroxylase (B) Lysyl oxidase (C) Lysyl hydroxylase (D) Glucosyl transferase

Description : A deficiency of copper effects the formation of normal collagen by reducing the activity of which of the following enzyme? (A) Prolyl hydroxylase (B) Lysyl oxidase (C) Lysyl hydroxylase (D) Glucosyl transferase

Last Answer : Answer : B

A protein having both structural and enzymatic traits is (A) Myosin (B) Collagen (C) Trypsin (D) Actin

Description : A protein having both structural and enzymatic traits is (A) Myosin (B) Collagen (C) Trypsin (D) Actin

Last Answer : Answer : A

The vitamin required for the formation of hydroxyproline (in collagen) is (A) Vitamin C (B) Vitamin A (C) Vitamin D (D) Vitamin E

Description : The vitamin required for the formation of hydroxyproline (in collagen) is (A) Vitamin C (B) Vitamin A (C) Vitamin D (D) Vitamin E

Last Answer : Answer : A

The number of helices present in a collagen molecule is (A) 1 (B) 2 (C) 3 (D) 4

Description : The number of helices present in a collagen molecule is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : C

Proteins that constitute keratin, collagen and elastin in body are (A) Protamines (B) Phosphol proteins (C) Scleroproteins (D) Metaproteins

Description : Proteins that constitute keratin, collagen and elastin in body are (A) Protamines (B) Phosphol proteins (C) Scleroproteins (D) Metaproteins

Last Answer : Answer : C

Which of the following protein is rich in cysteine? (A) Elastine (B) Collagen (C) Fibrin (D) Keratin

Description : Which of the following protein is rich in cysteine? (A) Elastine (B) Collagen (C) Fibrin (D) Keratin

Last Answer : Answer : D

Collagen is very rich in (A) Glycine (B) Serine (C) Aspartic acid (D) Glutamic acid

Description : Collagen is very rich in (A) Glycine (B) Serine (C) Aspartic acid (D) Glutamic acid

Last Answer : Answer : A

Collagen and elastin have the following similarity: (A) Both are triple helices (B) Both have hydroxyproline residues (C) Both have hydrolysine residues (D) Both are glycoproteins

Description : Collagen and elastin have the following similarity: (A) Both are triple helices (B) Both have hydroxyproline residues (C) Both have hydrolysine residues (D) Both are glycoproteins

Last Answer : Answer : A

The most abundant collagen in cartilages is (A) Type I (B) Type II (C) Type III (D) Type IV

Description : The most abundant collagen in cartilages is (A) Type I (B) Type II (C) Type III (D) Type IV

Last Answer : Answer : B

The most abundant protein in bones is (A) Collagen type I (B) Collagen type II (C) Collagen type III (D) Non-collagen proteins

Description : The most abundant protein in bones is (A) Collagen type I (B) Collagen type II (C) Collagen type III (D) Non-collagen proteins

Last Answer : Answer : A

A protein rich in hydroxyproline is (A) Prolamin (B) Procollagen (C) Collagen (D) Proinsulin

Description : A protein rich in hydroxyproline is (A) Prolamin (B) Procollagen (C) Collagen (D) Proinsulin

Last Answer : Answer : C

The most abundant protein in mammals is (A) Albumin (B) Haemoglobin (C) Collagen (D) Elastin

Description : The most abundant protein in mammals is (A) Albumin (B) Haemoglobin (C) Collagen (D) Elastin

Last Answer : Answer : C

A protein rich in cysteine is (A) Collagen (B) Keratin (C) Haemoglobin (D) Gelatin

Description : A protein rich in cysteine is (A) Collagen (B) Keratin (C) Haemoglobin (D) Gelatin

Last Answer : Answer : B

The number of helices present in a collagen molecule is (A) 1 (B) 2 (C) 3 (D) 4

Description : The number of helices present in a collagen molecule is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : Answer : C

What disease occurs when there is an abnormal increase in the number of white blood cells which results in fewer red blood cells carrying oxygen to body tissues?

Description : What disease occurs when there is an abnormal increase in the number of white blood cells which results in fewer red blood cells carrying oxygen to body tissues?

Last Answer : Leukemia

The transfusion of fresh frozen plasma (FFP) is indicated for which of the following reasons? A. Volume replacement. B. As a nutritional supplement. C. Specific coagulation factor deficiency with an abnormal prothrombin time (PT) and/or an abnormal activated partial thromboplastin time (APTT). D. For the correction of abnormal PT secondary to warfarin therapy, vitamin K deficiency, or liver disease.

Description : The transfusion of fresh frozen plasma (FFP) is indicated for which of the following reasons? A. Volume replacement. B. As a nutritional supplement. C. Specific coagulation factor deficiency ... the correction of abnormal PT secondary to warfarin therapy, vitamin K deficiency, or liver disease.

Last Answer : Answer: CD DISCUSSION: The use of FFP as a volume expander is not indicated. There are currently several preparations (both crystalloid and colloid) that are equally effective and do not carry the infectious and ... vitamin K-dependent factors II, VII, IX, and X, as well as protein C and protein S

Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Description : Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Last Answer : (3) the adjustment of the eye for light Explanation: Photophobia, or light sensitivity, is an intolerance of light. Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes.

Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Description : Photophobia is - (1) a disease caused by too much sunlight (2) abnormal intolerance of light (3) the adjustment of the eye for light (4) the ability to perceive light

Last Answer : (3) the adjustment of the eye for light Explanation: Photophobia, or light sensitivity, is an intolerance of light. Sources such as sunlight, fluorescent light and incandescent light all can cause discomfort, along with a need to squint or close your eyes.

True statements about EOG (electro-oculogram) include: a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion b. the light peak of EOG is abnormal in Best's disease c. the EOG light rise is produced by depolarization of the basal membrane of the retinal pigment epithelium d. all above

Description : True statements about EOG (electro-oculogram) include: a. the EOG light-peak to dark-trough ratio is reduced in central retinal vein occlusion b. the light peak of EOG is abnormal in Best' ... rise is produced by depolarization of the basal membrane of the retinal pigment epithelium d. all above

Last Answer : all above