Mental retardation in man, associated with sex chromosomal abnormality is usually due to (a) moderate increase in Y complement (b) large increase in Y complement (c) reduction in X complement (d) increase in X complement.

Mental retardation in man, associated with sex
chromosomal abnormality is usually due to
(a) moderate increase in Y complement
(b) large increase in Y complement
(c) reduction in X complement
(d) increase in X complement.
by

1 Answer

Answer :

(d) increase in X complement.
by

Related questions

.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

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

Stunned growth of child during pregnancy mental retardation, low intelligence quiotient is due to

Description : Stunned growth of child during pregnancy mental retardation, low intelligence quiotient is due to

Last Answer : Stunned growth of child during pregnancy mental retardation, low intelligence quiotient is due to

Which of the following suggests a diagnosis of Hurler's Syndrome rather than Hunter's Syndrome? 1) X-linked inheritance 2) Mental retardation 3) Skeletal abnormalities 4) Cloudy cornea 5) Cardiomyopathy

Description : Which of the following suggests a diagnosis of Hurler's Syndrome rather than Hunter's Syndrome? 1) X-linked inheritance 2) Mental retardation 3) Skeletal abnormalities 4) Cloudy cornea 5) Cardiomyopathy

Last Answer : Answers-4 Hunter's Syndrome (MPS-2) is of X-linked inheritance. The cornea are clear. The skeletal involvement tends to be mild with no gibbous present, though scoliosis is ... and gibbous deformation of the spine is characteristic. There is the characteristic coarse facies with hepatosplenomegaly.

The permissible use of the technique amniocentesis is for (a) detecting sex of the unborn fetus (b) artificial insemination (c) transfer of embryo into the uterus of a surrogate mother (d) detecting any genetic abnormality.

Description : The permissible use of the technique amniocentesis is for (a) detecting sex of the unborn fetus (b) artificial insemination (c) transfer of embryo into the uterus of a surrogate mother (d) detecting any genetic abnormality.

Last Answer : (d) detecting any genetic abnormality.

Which of the following physical findings are associated with the various classes of hemorrhagic shock? a. Mild shock (< 20% blood volume): Pallor, cool extremities, diminished capillary refill and diaphoresis b. Moderate shock (20%–40% blood volume): All of the above plus tachycardia and hypotension c. Severe shock (> 40% blood volume): Systemic hypotension, changes in mental status, tachycardia, oliguria d. All of the above

Description : Which of the following physical findings are associated with the various classes of hemorrhagic shock? a. Mild shock (< 20% blood volume): Pallor, cool extremities, diminished capillary refill and ... ): Systemic hypotension, changes in mental status, tachycardia, oliguria d. All of the above

Last Answer : Answer: a, c PHYSICAL FINDINGS IN HEMORRHAGIC SHOCK* Moderate Mild (40% Blood Volume) Blood Volume) Blood Volume) Pallor Pallor Pallor Cool extremities Cool extremities Cool extremities ... hypotension Mental status changes * Alcohol or drug intoxication may alter physical findings

When the post-cardiac surgery patient demonstrates restlessness, nausea, weakness, and peaked T waves, the nurse reviews the patient’s serum electrolytes anticipating which abnormality? a) Hyperkalemia Hyperkalemia is indicated by mental confusion, restlessness, nausea, weakness, and dysrhythmias (tall, peaked T waves). b) Hypercalcemia Hypercalcemia would likely be demonstrated by asystole. c) Hypomagnesemia Hypomagenesemia would likely be demonstrated by hypotension, lethargy, and vasodilation. d) Hyponatremia Hyponatremia would likely be indicated by weakness, fatigue, and confusion without change in T wave formation

Description : When the post-cardiac surgery patient demonstrates restlessness, nausea, weakness, and peaked T waves, the nurse reviews the patient's serum electrolytes anticipating which abnormality? a) Hyperkalemia ... likely be indicated by weakness, fatigue, and confusion without change in T wave formation

Last Answer : a) Hyperkalemia Hyperkalemia is indicated by mental confusion, restlessness, nausea, weakness, and dysrhythmias (tall, peaked T waves).

Chromosomal basis of sex determination was discovered in the plant :

Description : Chromosomal basis of sex determination was discovered in the plant :

Last Answer : Chromosomal basis of sex determination was discovered in the plant : A. Rumex B. Melandrium C. Concinia D. Spharocarpus

A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient, and abnormal skin. This is the resul

Description : A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient, and abnormal skin. This is the resul

Last Answer : A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence ... distalis D. Deficiency of idodine in diet.

Inborn errors of urea cycle can cause all the following except (A) Vomiting (B) Ataxia (C) Renal failure (D) Mental retardation

Description : Inborn errors of urea cycle can cause all the following except (A) Vomiting (B) Ataxia (C) Renal failure (D) Mental retardation

Last Answer : Answer : D

Inherited deficiency of purine nucleoside phosphorylase causes (A) Dwarfism (B) Mental retardation (C) Immunodeficiency (D) Gout

Description : Inherited deficiency of purine nucleoside phosphorylase causes (A) Dwarfism (B) Mental retardation (C) Immunodeficiency (D) Gout

Last Answer : Answer : C

Inherited deficiency of adenosine deaminase causes (A) Hyperuricaemia and gout (B) Mental retardation (C) Immunodeficiency (D) Dwarfism

Description : Inherited deficiency of adenosine deaminase causes (A) Hyperuricaemia and gout (B) Mental retardation (C) Immunodeficiency (D) Dwarfism

Last Answer : Answer : C

Mental retardation can occur in (A) Cretinism (B) Juvenile myxoedema (C) Myxoedema (D) Juvenile thyrotoxicosis

Description : Mental retardation can occur in (A) Cretinism (B) Juvenile myxoedema (C) Myxoedema (D) Juvenile thyrotoxicosis

Last Answer : Answer : A

An important finding in Hyperammonemia type II is (A) Increased serum gluatmine level (B) Enlarged liver (C) Mental retardation (D) Increased carbamoyl phosphate synthetase level

Description : An important finding in Hyperammonemia type II is (A) Increased serum gluatmine level (B) Enlarged liver (C) Mental retardation (D) Increased carbamoyl phosphate synthetase level

Last Answer : Answer : C

Mental retardation occurs in (A) Tay-Sachs disease (B) Gaucher’s disease (C) Niemann-Pick disease (D) All of these

Description : Mental retardation occurs in (A) Tay-Sachs disease (B) Gaucher’s disease (C) Niemann-Pick disease (D) All of these

Last Answer : Answer : D

All of the following statements about generalized gangliosidosis are true except (A) It results from deficiency of GM1-βGangliosidase (B) Breakdown of GM1 ganglioside is impaired (C) GM2 ganglioside accumulates in liver and elsewhere (D) It leads to mental retardation

Description : All of the following statements about generalized gangliosidosis are true except (A) It results from deficiency of GM1-βGangliosidase (B) Breakdown of GM1 ganglioside is impaired (C) GM2 ganglioside accumulates in liver and elsewhere (D) It leads to mental retardation

Last Answer : Answer : C

An important finding of Fabry’s disease is (A) Skin rash (B) Exophthalmos (C) Hemolytic anemia (D) Mental retardation

Description : An important finding of Fabry’s disease is (A) Skin rash (B) Exophthalmos (C) Hemolytic anemia (D) Mental retardation

Last Answer : Answer : A

All the following are true about phenylketonuria except (A) Deficiency of phenylalanine hydroxylase (B) Mental retardation (C) Increased urinary excretion of p-hydroxyphenyl pyruvic acid (D) Decrease serotonin formation

Description : All the following are true about phenylketonuria except (A) Deficiency of phenylalanine hydroxylase (B) Mental retardation (C) Increased urinary excretion of p-hydroxyphenyl pyruvic acid (D) Decrease serotonin formation

Last Answer : Answer : C

Clinical symptom in urea cycle disorder is (A) Mental retardation (B) Drowsiness (C) Diarrhoea (D) Oedema

Description : Clinical symptom in urea cycle disorder is (A) Mental retardation (B) Drowsiness (C) Diarrhoea (D) Oedema

Last Answer : Answer : A

Marasmus differs from Kwashiorkor in the which of these following respect (A) Mental retardation occurs in kwashiorkor but not in marasmus (B) Growth is retarded in kwashiorkor but not in marasmus (C) Muscle wasting occurs in marasmus but not kwashiorkor (D) Subcutaneous fat disappears in marasmus but not in kwashiorkor

Description : Marasmus differs from Kwashiorkor in the which of these following respect (A) Mental retardation occurs in kwashiorkor but not in marasmus (B) Growth is retarded in kwashiorkor but not in marasmus ... in marasmus but not kwashiorkor (D) Subcutaneous fat disappears in marasmus but not in kwashiorkor

Last Answer : Answer : D

Clinical features of Kwashiorkor include all of the following except (A) Mental retardation (B) Muscle wasting (C) Oedema (D) Anaemia

Description : Clinical features of Kwashiorkor include all of the following except (A) Mental retardation (B) Muscle wasting (C) Oedema (D) Anaemia

Last Answer : Answer : A

All the following statements about albinism are correct except (A) Tyrosine hydroxylase (tyrosinase) is absent or deficient in melanocytes (B) Skin is hypopigmented (C) It results in mental retardation (D) Eyes are hypopigmented

Description : All the following statements about albinism are correct except (A) Tyrosine hydroxylase (tyrosinase) is absent or deficient in melanocytes (B) Skin is hypopigmented (C) It results in mental retardation (D) Eyes are hypopigmented

Last Answer : Answer : C

Congenital galactosaemia can lead to (A) Mental retardation (B) Premature cataract (C) Death (D) All of the above

Description : Congenital galactosaemia can lead to (A) Mental retardation (B) Premature cataract (C) Death (D) All of the above

Last Answer : D

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.

In which of the following is mental retardation an expected finding? 1) Alkaptonuria 2) Cystinuria 3) Glycogen storage disease 4) Lactose intolerance 5) Maple syrup urine disease

Description : In which of the following is mental retardation an expected finding? 1) Alkaptonuria 2) Cystinuria 3) Glycogen storage disease 4) Lactose intolerance 5) Maple syrup urine disease

Last Answer : Answers-5 MENTAL RETARDATION. Fragile X syndrome-commonest male cause. Hypoxia at birth, intaventricular haemorrhage, rhesus disease, Congenital infections - toxoplasmosis, CMV, rubella ... with diet. -homocystinuria, phenylketonuria -maple syrup urine disease, tryptophanuria -galactosaemia

A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin. This is the result of (a) cancer of the thyroid gland (b) oversecretion of pars distalis (c) deficiency of iodine in diet (d) low secretion of growth hormone

Description : A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin. This is the result of (a) cancer of the thyroid gland (b) oversecretion of pars distalis (c) deficiency of iodine in diet (d) low secretion of growth hormone

Last Answer : (c) deficiency of iodine in diet

Marco and Bob have been the best friends ever since they were little kids. They are also very competitive. Throughout the years they have challenged each other to do both physical and mental challenges. And they completed the challenge. But one day Marco thought of something to challenge Bob to do - something he could start but never finish. The average man could do it and so could Mark and they were both the same sex and the same size. It is a physical challenge. Can you figure out what it was? -Riddles

Description : Marco and Bob have been the best friends ever since they were little kids. They are also very competitive. Throughout the years they have challenged each other to do both physical and mental challenges. And ... and the same size. It is a physical challenge. Can you figure out what it was? -Riddles

Last Answer : Marco challenged Bob to get a tan, but he couldn't...Bob is an albino.

XX-XO sex chromosome complement occurs in

Description : XX-XO sex chromosome complement occurs in

Last Answer : XX-XO sex chromosome complement occurs in A. Cockrocach B. Hony bee C. Chimpanzee D. Human female

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

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

The eukaryotic nuclear chromosomal DNA (A) Is a linear and unbranched molecule (B) Is not associated with a specific membranous organelle (C) Is not replicated semiconservatively (D) Is about of the same size as each prokaryotic chromoses

Description : The eukaryotic nuclear chromosomal DNA (A) Is a linear and unbranched molecule (B) Is not associated with a specific membranous organelle (C) Is not replicated semiconservatively (D) Is about of the same size as each prokaryotic chromoses

Last Answer : Answer : A

The braking retardation is usually in the range?

Last Answer : The braking retardation is usually in the range 10 to 15 km phps.

Fill in the blanks with the appropriate option. Bonaparte did so with forcefulness rarely possessed by that usually _______ creature, the moderate man. (a) Mediocre (b) Excellent (c) Exceptional (d) average

Description : Fill in the blanks with the appropriate option. Bonaparte did so with forcefulness rarely possessed by that usually _______ creature, the moderate man. (a) Mediocre (b) Excellent (c) Exceptional (d) average

Last Answer : Ans: a) Mediocre 

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

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

Sickle-cell anemia is a disease caused due to the abnormality in – (1) white blood cells (2) red blood cells (3) thrombocytes (4) blood plasma composition

Description : Sickle-cell anemia is a disease caused due to the abnormality in – (1) white blood cells (2) red blood cells (3) thrombocytes (4) blood plasma composition

Last Answer : (2) red blood cells Explanation: Sickle cell anemia (sickle cell disease) is a disorder of the blood caused by an inherited abnormal hemoglobin (the oxygencarrying protein within the red blood cells).

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self- cells, then it leads to (a) autoimmune disease (b) active immunity (c) allergic response (d) graft rejection.

Description : In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self- cells, then it leads to (a) autoimmune disease (b) active immunity (c) allergic response (d) graft rejection.

Last Answer : (a) autoimmune disease

Ectopic pregnancies are referred to as (a) implantation of defective embryo in the uterus (b) pregnancies terminated due to hormonal imbalance(c) pregnancies with genetic abnormality (d) implantation of embryo at site other than uterus.

Description : Ectopic pregnancies are referred to as (a) implantation of defective embryo in the uterus (b) pregnancies terminated due to hormonal imbalance (c) pregnancies with genetic abnormality (d) implantation of embryo at site other than uterus.

Last Answer : (d) implantation of embryo at site other than uterus.

Which of the following adverse drug reactions is due to a specific genetic abnormality: A. Tetracycline induced sunburn like skin lesions B. Quinidine induced thrombocytopenia C. Metoclopramide induced muscle dystonia D. Primaquine induced massive haemolysis

Description : Which of the following adverse drug reactions is due to a specific genetic abnormality: A. Tetracycline induced sunburn like skin lesions B. Quinidine induced thrombocytopenia C. Metoclopramide induced muscle dystonia D. Primaquine induced massive haemolysis

Last Answer : D. Primaquine induced massive haemolysis

Which of the following adverse drug reactions is due to a specific genetic abnormality: A. Tetracycline induced sunburn like skin lesions B. Quinidine induced thrombocytopenia C. Metoclopramide induced muscle dystonia D. Primaquine induced massive haemolysis

Description : Which of the following adverse drug reactions is due to a specific genetic abnormality: A. Tetracycline induced sunburn like skin lesions B. Quinidine induced thrombocytopenia C. Metoclopramide induced muscle dystonia D. Primaquine induced massive haemolysis

Last Answer : D. Primaquine induced massive haemolysis

Frozen tissue section of a lymph node biopsy from the neck of an old dog shows granulomatous inflammation with large areas of necrosis. Which one would be most important to do? C A. cell surface markers for lymphocyte identification B. chromosomal analysis by karyotyping

Description : Frozen tissue section of a lymph node biopsy from the neck of an old dog shows granulomatous inflammation with large areas of necrosis. Which one would be most important to do? C A. cell surface markers for lymphocyte identification B. chromosomal analysis by karyotyping

Last Answer : cultures for acid fast bacilli and fungi

Which chromosomal combination is responsible for maleness in man? (1) XO (2) XXX (3) XX (4) XY

Description : Which chromosomal combination is responsible for maleness in man? (1) XO (2) XXX (3) XX (4) XY

Last Answer : Explanation: In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.

Which chromosomal combination is responsible for maleness in man ? (1) XO (2) XXX (3) XX (4) XY

Description : Which chromosomal combination is responsible for maleness in man ? (1) XO (2) XXX (3) XX (4) XY

Last Answer : XY

.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

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

Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at the line terminals (c) Possibility of better protection for the line due to possible use of higher terminal reactants (d) Improvement of power factor at times of moderate and heavy loads (e) Possibility of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Description : Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at ... of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Last Answer : (a) Increase of short-circuit current of the system

Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at the line terminals (c) Possibility of better protection for the line due to possible use of higher terminal reactants (d) Improvement of power factor at times of moderate and heavy loads (e) Possibility of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Description : Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at ... of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Last Answer : (a) Increase of short-circuit current of the system

Which of the following most appropriately describes haemophilia? (a) Chromosomal disorder (b) Dominant gene disorder (c) Recessive gene disorder (d) X-linked recessive gene disorder

Description : Which of the following most appropriately describes haemophilia? (a) Chromosomal disorder (b) Dominant gene disorder (c) Recessive gene disorder (d) X-linked recessive gene disorder

Last Answer : (d) X-linked recessive gene disorder

Which of the following are capable of causing chromosomal mutations? a) hydrogen peroxide b) high body temperature c) X-rays d) all of the above

Description : Which of the following are capable of causing chromosomal mutations? a) hydrogen peroxide b) high body temperature c) X-rays d) all of the above

Last Answer : ANSWER: D -- ALL OF THE ABOVE

Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? (A) Increase in calorific value of the fuel (B) Increase in flame temperature (C) Reduction in scale losses (D) Saving in fuel consumption

Description : Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? (A) Increase in calorific value of the fuel (B) Increase in flame temperature (C) Reduction in scale losses (D) Saving in fuel consumption

Last Answer : (A) Increase in calorific value of the fuel

Which one of the following characteristics is associated with the ‘Bread Basket’ area of USA? (1) Moderate rainfall in winter (2) Heavy rainfall throughout the year (3) Low rainfall in summer (4) Long winter with snow

Description : Which one of the following characteristics is associated with the ‘Bread Basket’ area of USA? (1) Moderate rainfall in winter (2) Heavy rainfall throughout the year (3) Low rainfall in summer (4) Long winter with snow

Last Answer : (1) Moderate rainfall in winter Explanation: The Great Plains region of the US is called "the Breadbasket of the US" because of its huge production of grain, particularly wheat, which is ... of moderate rainfall as rainfall decreases from east to west, resulting in different types of prairies.

What type of precipitation would you expect at an active unstable cold front? a. Freezing rain b. Light to moderate continuous rain c. Drizzle d. Showers associated with thunderstorms

Description : What type of precipitation would you expect at an active unstable cold front? a. Freezing rain b. Light to moderate continuous rain c. Drizzle d. Showers associated with thunderstorms

Last Answer : d. Showers associated with thunderstorms

What type of precipitation would you expect at an active unstable cold front? a. Freezing rain b. Light to moderate continuous rain c. Drizzle d. Showers associated with thunderstorms

Description : What type of precipitation would you expect at an active unstable cold front? a. Freezing rain b. Light to moderate continuous rain c. Drizzle d. Showers associated with thunderstorms

Last Answer : d. Showers associated with thunderstorms