Exam Details
| Subject | imsc in optometry & vision sciences | |
| Paper | ||
| Exam / Course | ima/imsc | |
| Department | ||
| Organization | central university | |
| Position | ||
| Exam Date | 2016 | |
| City, State | telangana, hyderabad |
Question Paper
1. What is the symbol for the element Selenium?
Si
Se
Na
S
2. Chips cook faster than boiled potatoes due to the chips having a
Smaller surface area and cooking at a lower temperature
Larger surface area and cooking at a lower temperature
Larger surface area and cooking at a higher temperature
Smaller surface area and cooking at a higher temperature
3. The four main elements in the human body are
Sulphur, nitrogen, oxygen and hydrogen
Carbon, nitrogen, oxygen and hydrogen
Carbon, sulphur, nitrogen and hydrogen
Carbon, sulphur, oxygen and hydrogen
4. Down's syndrome is an example of a chromosal abnormality called:
Trisomy
Monosomy
Deletion
Inversion
5. What enzyme is required for the polymerase chain reaction
Taq Polymerase
Paq polymerase
DNA polymerase
Polymerase
6. Energy cannot be carried by
Longitudinal Progressive waves
Stationary Waves
Transverse Progressive waves
Electromagnetic waves
7. The main function of food vacuole is
Egestion
Digestion
Excretion
Ingestion
8. The oxide of an element is gas and is soluble in water and forms an acidic solution. The element belongs to
IV Group
V Group
VI Group
VII Group
9. Alkanes have a general formula
CnHn+2
CnH2n+2
CnH2n-2
CnH2n
10. Which of the following microbes are responsible for nitrogen fixation in the soil
Virus
Fungi
Bacteria
Protozoa
11. Which of the following is equal to
a^3
2ab
12. The figure below shows the graph of the function/in the xy-plane. What is the value of
0
1
13. An iron nail is dipped in a solution of copper sulphate in water. This solution is blue in color. The chemical reaction that takes place is, Fe(solid) FeS04(aqueous) Cu(solid). After some time the solution loses its blue color. What is the color of the nail at this time?
Green tinged blue
Blue tinged Black
Reddish brown
Shiny steel color
14. If in a series the pth term divided by the term yields the same ratio as the qth term divided by the term, then the series is in:
Arithmetic Progression
Geometric Progression
Both AP and GP
None of the above
15. You want to add a strip of copper on the circular wall of your experimental setup such that it fits the field of view of the subject at the centre of the room. The field of view of the subject is 45 degrees and radius of the room is 4m. What should be the length of the strip you should use?
7t
27t
2
1
16. The human heart tissue is innervated by
Optic
Vagus
Ocular
Trochlear
17. Hormone regulating serum calcium level is
Thyroxine
Parathyriod hormone
Cortisol
Corticosterone
18. Thirty percent of the nucleotide bases in human DNA are adenine What is the percentage of guanine bases in human DNA?
20%
30%
40%
70%
19. What was MacFarlane Burnet's major contribution to science?
Better understanding of the immune response
Identification of complementary bases in DNA
Proposal of the one gene-one protein hypothesis
Identification of the importance of chromosomes
20. To make a 2.5 M Glucose solution in 100 ml, we need grams of Glucose (Mol. Wt of Glucose is 180 grams)
36
90
45
54
21. Grams's staining was developed by
Hans Christian Gram
Louis Pasteu
Robert Koch
Anthony Hopkins
22. Graves disease is an autoimmune disease caused by excessive production of
Insulin
Glucagon
Epinephrine
Thyroid Hormone
23. Vitamin required for blood coagulation is
Vitamin 1312
Vitamin K
C)Vitamin C
Vitamin D
24. Identify the broad -spectrum antibiotic amongst the following:
Penicillin
Chloramphenicol
Amoxicillin
Fluoroquinolones
25. Marburg virus is named after
A village in Cameroon
A German town which was the site of an outbreak
Virologist Wolf Marburg
None of the above
26. Which is the main parameter of light rays of different colours that cause them to appear coloured to you?
Wavelength
Intensity
Amplitude
Phase
27. If8V applied to a resistor caused a current flow of2A what will be the current when 4V is applied?
O.5A
2A
8A
lA
28. A gene whose specific mutation can cause a genetic disease that is fatal in the childhood is X-linked and recessive. If the gene follows Mendelian pattern of inheritance then
Mother can be carrier
Father can be carrier
Father and Mother can be carrier
Carriers cannot exist
29. Most of the dry weight of the plants comes from
Carbon Dioxide in the air
Sunlight
Nutrients in the soil
None of the above
30. The maximum Kinetic Energy of emitted electrons in a photo electric effect does not depend on
Wavelength
Frequency
Intensity
Work Function
31. The Latin name, Aqua Fortis is used for
Sulphuric Acid
Phosphoric Acid
Acetic Acid
Nitric Acid
32. In the binomial system of nomenclature, the name of Genus when typed is
Always capitalized and abbreviated
Always capitalized and can be abbreviated
Never capitalized but can be abbreviated
Never capitalized and never abbreviated
33. Scurvy is caused due to the deficiency of
Vitamin A
Vitamin K
Vitamin D
Vitamin C
34. The "Mirage effect" is due to which phenomenon of light
Reflection
Refraction
Dispersion
Diffraction
35. Thermophiles are the bacteria that grow in
High salt concentration
High Temperatures
Basic conditions
Acidic conditions
36. Nickel is a catalyst used in
Production ofAmmonia
Hydrogenation of Vegetable Oil
Production ofCarbon Monoxide
Acetylation of Salicylic acid
37. Kidney is responsible for the synthesis of
Erythropoietin
Melanin
Collagen
Insulin
38. Aldosterone hormone is synthesized by
Pancreas
Pituitary Glands
Adrenal glands
Thyroid Gland
39. Which of the following disease is caused by a virus
Polio
Tuberculosis
Malaria
Athlete's foot
40. The following stain is used for staining plant cells to view under the microscope
Cell stain
Iodine solution
Biuret reagent
Benedict's solution
41. Which one of this is a useless by-product of photo synthesis in plants?
Glucose
Water
Oxygen
Carbon dioxide
42. Why is a "saturated" fat called saturated fat?
The Fatty acid carbon chains are saturated with Hydrogen
The fat is saturated with water
The fatty acid chains can have more water added
They saturate the body with fat when eaten
43. Total volume of blood in a normal adult human being is
5-6 liters
3-4 liters
8-10 liters
10-12 liters
44. Which one is not correct:
Insulin: Pancreas
Epinephrine: Adrenal
Prolactin: Pituitary
Oxytocin: Thyroid
45. The following always happens in a chemical reaction
A color change occurs
A gas is given off
Heat energy is absorbed
A new substance is formed
46. Which of the following is the richest source of energy in our diet?
Proteins
Fats and oils
Carbohydrates
Fibre
47. Which of the metals shown is the most reactive?
Zinc
Copper
Magnesium
Iron
48. Excess Glucose is stored in animal tissues as
Cellulose
Starch
Protein
Glycogen
49. Which stain do we use for staining animal cells?
Iodine solution
Cell stain
Methylene blue
Ribena
50. Which one is not a symptom of diabetes:
Excess urination
Excessive thirst
Loss of weight
Night blindness
51. Which one of them is a monosaccharide:
Sucrose
Lactose
Galactose
Maltose
52. Hepatic portal system collects blood from
Liver
Lungs
Kidney
Alimentary canal
53. Jaundice is a diseased condition of
Liver
Lung
Kidney
Eye
54. What can Vitamin B12 deficiency lead to?
Night blindness
Pernicious anemia
Beri-Beri
Loss of appetite
55. Choose the correct pair:
Iodine deficiency :Goitre
Iron deficiency :Keratomalacia
Vitamin A Cataract
Calcium deficiency: Scurvy
56. Identify the incorrect pair:
Bile: Liver cells
Bilirubin: Bile pigment
Gall bladder: Vital for life
Chyme: Semi digested food
57. Choose the correct pair:
Cryoprotectant: Glycerol
Reducing sugar: Sucrose
Bacterial cell wall: Glycogen
Quartz: Amorphous substance
58. Glucose is not found in the urine in normal individuals, since
Glucose is not filtered in the kidney
The levels of blood glucose are not sufficient for filtration
The glucose filtered in the kidney is rapidly metabolized
The filtered glucose in completely reabsorbed
59. The artery which supplies oxygenated blood to heart muscle in humans is
Capsular
Carotid
Coronary
Subclavian
60. "Pellagra" is caused due to the deficiency of
Thiamine
Biotin
Pantothenic acid
Niacin
61. Lipopolysaccharide is a cell wall component of mainly,
Gram positive bacteria
Gram negative bacteria
Yeast cells
Viruses.
62. Type 1 diabetes is also known as
Non-insulin dependent diabetes
Insulin dependent diabetes
Glucagon dependent diabetes
None of the above
63. Which protein is required for maintaining cell shape
Albumin
Lectin
Pepsin
Actin
64. Average life span of red blood cells
180 days
150 days
120 days
60 days
65. Choose the correct pair:
Carbon monoxide: laughing gas
Night blindness: Vitamin K
Cyanide poisoning Cytochrome C
Greenhouse gas: Carbon dioxide
66. The condition in which the human bones become brittle is:
Loss of calcium absorption
Cholera
Cataract
Heart failure
67. A coenzyme is essential for the
Stability of enzyme
Synthesis of enzyme protein
Enzyme activity
Degradation of the enzyme
68. Which one of the following is not a pathogen of the gastro-intestinal tract?
E. Coli
Clostridium tetani
Vibrio cholarae
Shigella
69.Brain centre in humans that regulate hunger
Medulla oblongata
Cerebellum
Hypothalamus
Pons
70.Pentose sugar present in DNA is
Ribulose
Ribose
Deoxyribose
Deoxyribulose
71.The first part of the small intestine is called
Duodenum
Jejunum
Ileum
Caecum
72.The covalent bond present in proteins is
Glycosidic
Phosphodiester
Peptide
Thioether
73.When citrate is added to the blood sample, blood does not clot, because
Proteins are precipitated
Calcium is chelated
Red blood cells are lysed
Fibrinogen only is precipitated
74.Which one of the following vitamins contains cobalt?
Vitamin D
Vitamin C
Vitamin B 12
Biotin
75.Hormone that regulate liver glucose production
Gastrin
Secretin
Glucagon
Leptin
76. Which is the major cell in terms of numbers participating in phagocytic function in human blood?
Neutrophil
Monocyte
Eosinophil
Basophil
77. The conduction of the nerve impulse in a neuron takes place in
Cell body
Axon
Dendron
Synapse
78. Which one of them is anucleated
Neutrophil
Platelets
Monocytes
Erythrocytes
79. Long-term exposure to excessive levels of benzene in the air causes
Blindness
Headache
Leukemia
Schizophrenia
80. Chronic exposure to carbon tetrachloride leads to
Liver and Kidney damage
skin disease
Bone disease
None of the above.
81. Organic chemistry is the branch of chemistry deals with
Biomolecules
Metals
Minerals
Carbon
82. Radioisotope of carbon used for
Age determination
Sex determination
X-rays
MRI
83. What is the other name of vitamin
Acetic Acid
Sulfuric Acid
Ascorbic Acid
None
84. Which of these mammalian species has lost the gene for uricase?
German Shepared dog
Dalmatian dog
American dog
None of the above
85. If, 10000 E.Colibacteria, present in the culture, after 60 minutes how many E.Coli bacteria present in the culture:
40000
20000
70000
80000
86. Anemia is caused by the deficiency of
Hemoglobin
Folic acid
Pantothenic acid
Pyridoxine
87. Who discovered the bacteria that causes cholera?
Pierre Berthelot
Louis Pasteur
None of the above
Robert Koch
88. Infections of salivary glands by a virus leads to
Tetanus
Pyrrohea
Ulcers
Mumps
89. The exchange of materials between the mother and the foetus during pregnancy is through the.....
Yolk sac
Amnion
Chorion
Placenta
90. Deoxyribonucleic acid is a double-stranded' nucleic acid molecule. For all double stands of DNA, which one of the following statements is true?
The numbers of adenine and guanine bases are equal
The numbers of thymine and cytosine bases are equal
The numbers of adenine guanine thymine and cytosine bases are equal
The numbers of guanine and cytosine bases are equal
91. During mitosis, the cell duplicates it's ....... the strands of DNA found in its nucleus.
Centromeres
Nucleotides
Chromosomes
chloroplasts
92. Pharmacology is the study of...
Toxicology of drugs
Interactions of drugs
Class of drugs
All of the above
93. The largest organ of the human body is:
Heart
Lung
Live
Skin
94. Mercury is:
A liquid and metal
A liquid and non-metal
A solid and non-metal
Neither liquid nor metal
95. John buys an old scooter for Rs 5000 and spends 500 on its repairs. If he sells the scooter for Rs 6000, what is his gain percent?
10%
96. A bag contains 2 yellow, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is yellow?
1/2
9/11
10/21
7/11
97. Three coins are tossed. What is the probability of getting at most two heads?
7/8
1/8
1/2
1/7
98. A dice is thrown. What is the probability that the number shown in the dice is divisible by
1/3
1/6
1/4
1/2
99. A person crosses a 1200m long street in 10 minutes. What is his speed in Km per hour?
8.2
4.2
6.1
7.2
100.A and B walk around a circular track. A and B walk at a speed of2 rounds per hour and 3 rounds per hour respectively. If they start at 8 am from the same point in opposite directions, how many times shall they cross each other before 9:30 am?
5
6
7
8
Si
Se
Na
S
2. Chips cook faster than boiled potatoes due to the chips having a
Smaller surface area and cooking at a lower temperature
Larger surface area and cooking at a lower temperature
Larger surface area and cooking at a higher temperature
Smaller surface area and cooking at a higher temperature
3. The four main elements in the human body are
Sulphur, nitrogen, oxygen and hydrogen
Carbon, nitrogen, oxygen and hydrogen
Carbon, sulphur, nitrogen and hydrogen
Carbon, sulphur, oxygen and hydrogen
4. Down's syndrome is an example of a chromosal abnormality called:
Trisomy
Monosomy
Deletion
Inversion
5. What enzyme is required for the polymerase chain reaction
Taq Polymerase
Paq polymerase
DNA polymerase
Polymerase
6. Energy cannot be carried by
Longitudinal Progressive waves
Stationary Waves
Transverse Progressive waves
Electromagnetic waves
7. The main function of food vacuole is
Egestion
Digestion
Excretion
Ingestion
8. The oxide of an element is gas and is soluble in water and forms an acidic solution. The element belongs to
IV Group
V Group
VI Group
VII Group
9. Alkanes have a general formula
CnHn+2
CnH2n+2
CnH2n-2
CnH2n
10. Which of the following microbes are responsible for nitrogen fixation in the soil
Virus
Fungi
Bacteria
Protozoa
11. Which of the following is equal to
a^3
2ab
12. The figure below shows the graph of the function/in the xy-plane. What is the value of
0
1
13. An iron nail is dipped in a solution of copper sulphate in water. This solution is blue in color. The chemical reaction that takes place is, Fe(solid) FeS04(aqueous) Cu(solid). After some time the solution loses its blue color. What is the color of the nail at this time?
Green tinged blue
Blue tinged Black
Reddish brown
Shiny steel color
14. If in a series the pth term divided by the term yields the same ratio as the qth term divided by the term, then the series is in:
Arithmetic Progression
Geometric Progression
Both AP and GP
None of the above
15. You want to add a strip of copper on the circular wall of your experimental setup such that it fits the field of view of the subject at the centre of the room. The field of view of the subject is 45 degrees and radius of the room is 4m. What should be the length of the strip you should use?
7t
27t
2
1
16. The human heart tissue is innervated by
Optic
Vagus
Ocular
Trochlear
17. Hormone regulating serum calcium level is
Thyroxine
Parathyriod hormone
Cortisol
Corticosterone
18. Thirty percent of the nucleotide bases in human DNA are adenine What is the percentage of guanine bases in human DNA?
20%
30%
40%
70%
19. What was MacFarlane Burnet's major contribution to science?
Better understanding of the immune response
Identification of complementary bases in DNA
Proposal of the one gene-one protein hypothesis
Identification of the importance of chromosomes
20. To make a 2.5 M Glucose solution in 100 ml, we need grams of Glucose (Mol. Wt of Glucose is 180 grams)
36
90
45
54
21. Grams's staining was developed by
Hans Christian Gram
Louis Pasteu
Robert Koch
Anthony Hopkins
22. Graves disease is an autoimmune disease caused by excessive production of
Insulin
Glucagon
Epinephrine
Thyroid Hormone
23. Vitamin required for blood coagulation is
Vitamin 1312
Vitamin K
C)Vitamin C
Vitamin D
24. Identify the broad -spectrum antibiotic amongst the following:
Penicillin
Chloramphenicol
Amoxicillin
Fluoroquinolones
25. Marburg virus is named after
A village in Cameroon
A German town which was the site of an outbreak
Virologist Wolf Marburg
None of the above
26. Which is the main parameter of light rays of different colours that cause them to appear coloured to you?
Wavelength
Intensity
Amplitude
Phase
27. If8V applied to a resistor caused a current flow of2A what will be the current when 4V is applied?
O.5A
2A
8A
lA
28. A gene whose specific mutation can cause a genetic disease that is fatal in the childhood is X-linked and recessive. If the gene follows Mendelian pattern of inheritance then
Mother can be carrier
Father can be carrier
Father and Mother can be carrier
Carriers cannot exist
29. Most of the dry weight of the plants comes from
Carbon Dioxide in the air
Sunlight
Nutrients in the soil
None of the above
30. The maximum Kinetic Energy of emitted electrons in a photo electric effect does not depend on
Wavelength
Frequency
Intensity
Work Function
31. The Latin name, Aqua Fortis is used for
Sulphuric Acid
Phosphoric Acid
Acetic Acid
Nitric Acid
32. In the binomial system of nomenclature, the name of Genus when typed is
Always capitalized and abbreviated
Always capitalized and can be abbreviated
Never capitalized but can be abbreviated
Never capitalized and never abbreviated
33. Scurvy is caused due to the deficiency of
Vitamin A
Vitamin K
Vitamin D
Vitamin C
34. The "Mirage effect" is due to which phenomenon of light
Reflection
Refraction
Dispersion
Diffraction
35. Thermophiles are the bacteria that grow in
High salt concentration
High Temperatures
Basic conditions
Acidic conditions
36. Nickel is a catalyst used in
Production ofAmmonia
Hydrogenation of Vegetable Oil
Production ofCarbon Monoxide
Acetylation of Salicylic acid
37. Kidney is responsible for the synthesis of
Erythropoietin
Melanin
Collagen
Insulin
38. Aldosterone hormone is synthesized by
Pancreas
Pituitary Glands
Adrenal glands
Thyroid Gland
39. Which of the following disease is caused by a virus
Polio
Tuberculosis
Malaria
Athlete's foot
40. The following stain is used for staining plant cells to view under the microscope
Cell stain
Iodine solution
Biuret reagent
Benedict's solution
41. Which one of this is a useless by-product of photo synthesis in plants?
Glucose
Water
Oxygen
Carbon dioxide
42. Why is a "saturated" fat called saturated fat?
The Fatty acid carbon chains are saturated with Hydrogen
The fat is saturated with water
The fatty acid chains can have more water added
They saturate the body with fat when eaten
43. Total volume of blood in a normal adult human being is
5-6 liters
3-4 liters
8-10 liters
10-12 liters
44. Which one is not correct:
Insulin: Pancreas
Epinephrine: Adrenal
Prolactin: Pituitary
Oxytocin: Thyroid
45. The following always happens in a chemical reaction
A color change occurs
A gas is given off
Heat energy is absorbed
A new substance is formed
46. Which of the following is the richest source of energy in our diet?
Proteins
Fats and oils
Carbohydrates
Fibre
47. Which of the metals shown is the most reactive?
Zinc
Copper
Magnesium
Iron
48. Excess Glucose is stored in animal tissues as
Cellulose
Starch
Protein
Glycogen
49. Which stain do we use for staining animal cells?
Iodine solution
Cell stain
Methylene blue
Ribena
50. Which one is not a symptom of diabetes:
Excess urination
Excessive thirst
Loss of weight
Night blindness
51. Which one of them is a monosaccharide:
Sucrose
Lactose
Galactose
Maltose
52. Hepatic portal system collects blood from
Liver
Lungs
Kidney
Alimentary canal
53. Jaundice is a diseased condition of
Liver
Lung
Kidney
Eye
54. What can Vitamin B12 deficiency lead to?
Night blindness
Pernicious anemia
Beri-Beri
Loss of appetite
55. Choose the correct pair:
Iodine deficiency :Goitre
Iron deficiency :Keratomalacia
Vitamin A Cataract
Calcium deficiency: Scurvy
56. Identify the incorrect pair:
Bile: Liver cells
Bilirubin: Bile pigment
Gall bladder: Vital for life
Chyme: Semi digested food
57. Choose the correct pair:
Cryoprotectant: Glycerol
Reducing sugar: Sucrose
Bacterial cell wall: Glycogen
Quartz: Amorphous substance
58. Glucose is not found in the urine in normal individuals, since
Glucose is not filtered in the kidney
The levels of blood glucose are not sufficient for filtration
The glucose filtered in the kidney is rapidly metabolized
The filtered glucose in completely reabsorbed
59. The artery which supplies oxygenated blood to heart muscle in humans is
Capsular
Carotid
Coronary
Subclavian
60. "Pellagra" is caused due to the deficiency of
Thiamine
Biotin
Pantothenic acid
Niacin
61. Lipopolysaccharide is a cell wall component of mainly,
Gram positive bacteria
Gram negative bacteria
Yeast cells
Viruses.
62. Type 1 diabetes is also known as
Non-insulin dependent diabetes
Insulin dependent diabetes
Glucagon dependent diabetes
None of the above
63. Which protein is required for maintaining cell shape
Albumin
Lectin
Pepsin
Actin
64. Average life span of red blood cells
180 days
150 days
120 days
60 days
65. Choose the correct pair:
Carbon monoxide: laughing gas
Night blindness: Vitamin K
Cyanide poisoning Cytochrome C
Greenhouse gas: Carbon dioxide
66. The condition in which the human bones become brittle is:
Loss of calcium absorption
Cholera
Cataract
Heart failure
67. A coenzyme is essential for the
Stability of enzyme
Synthesis of enzyme protein
Enzyme activity
Degradation of the enzyme
68. Which one of the following is not a pathogen of the gastro-intestinal tract?
E. Coli
Clostridium tetani
Vibrio cholarae
Shigella
69.Brain centre in humans that regulate hunger
Medulla oblongata
Cerebellum
Hypothalamus
Pons
70.Pentose sugar present in DNA is
Ribulose
Ribose
Deoxyribose
Deoxyribulose
71.The first part of the small intestine is called
Duodenum
Jejunum
Ileum
Caecum
72.The covalent bond present in proteins is
Glycosidic
Phosphodiester
Peptide
Thioether
73.When citrate is added to the blood sample, blood does not clot, because
Proteins are precipitated
Calcium is chelated
Red blood cells are lysed
Fibrinogen only is precipitated
74.Which one of the following vitamins contains cobalt?
Vitamin D
Vitamin C
Vitamin B 12
Biotin
75.Hormone that regulate liver glucose production
Gastrin
Secretin
Glucagon
Leptin
76. Which is the major cell in terms of numbers participating in phagocytic function in human blood?
Neutrophil
Monocyte
Eosinophil
Basophil
77. The conduction of the nerve impulse in a neuron takes place in
Cell body
Axon
Dendron
Synapse
78. Which one of them is anucleated
Neutrophil
Platelets
Monocytes
Erythrocytes
79. Long-term exposure to excessive levels of benzene in the air causes
Blindness
Headache
Leukemia
Schizophrenia
80. Chronic exposure to carbon tetrachloride leads to
Liver and Kidney damage
skin disease
Bone disease
None of the above.
81. Organic chemistry is the branch of chemistry deals with
Biomolecules
Metals
Minerals
Carbon
82. Radioisotope of carbon used for
Age determination
Sex determination
X-rays
MRI
83. What is the other name of vitamin
Acetic Acid
Sulfuric Acid
Ascorbic Acid
None
84. Which of these mammalian species has lost the gene for uricase?
German Shepared dog
Dalmatian dog
American dog
None of the above
85. If, 10000 E.Colibacteria, present in the culture, after 60 minutes how many E.Coli bacteria present in the culture:
40000
20000
70000
80000
86. Anemia is caused by the deficiency of
Hemoglobin
Folic acid
Pantothenic acid
Pyridoxine
87. Who discovered the bacteria that causes cholera?
Pierre Berthelot
Louis Pasteur
None of the above
Robert Koch
88. Infections of salivary glands by a virus leads to
Tetanus
Pyrrohea
Ulcers
Mumps
89. The exchange of materials between the mother and the foetus during pregnancy is through the.....
Yolk sac
Amnion
Chorion
Placenta
90. Deoxyribonucleic acid is a double-stranded' nucleic acid molecule. For all double stands of DNA, which one of the following statements is true?
The numbers of adenine and guanine bases are equal
The numbers of thymine and cytosine bases are equal
The numbers of adenine guanine thymine and cytosine bases are equal
The numbers of guanine and cytosine bases are equal
91. During mitosis, the cell duplicates it's ....... the strands of DNA found in its nucleus.
Centromeres
Nucleotides
Chromosomes
chloroplasts
92. Pharmacology is the study of...
Toxicology of drugs
Interactions of drugs
Class of drugs
All of the above
93. The largest organ of the human body is:
Heart
Lung
Live
Skin
94. Mercury is:
A liquid and metal
A liquid and non-metal
A solid and non-metal
Neither liquid nor metal
95. John buys an old scooter for Rs 5000 and spends 500 on its repairs. If he sells the scooter for Rs 6000, what is his gain percent?
10%
96. A bag contains 2 yellow, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is yellow?
1/2
9/11
10/21
7/11
97. Three coins are tossed. What is the probability of getting at most two heads?
7/8
1/8
1/2
1/7
98. A dice is thrown. What is the probability that the number shown in the dice is divisible by
1/3
1/6
1/4
1/2
99. A person crosses a 1200m long street in 10 minutes. What is his speed in Km per hour?
8.2
4.2
6.1
7.2
100.A and B walk around a circular track. A and B walk at a speed of2 rounds per hour and 3 rounds per hour respectively. If they start at 8 am from the same point in opposite directions, how many times shall they cross each other before 9:30 am?
5
6
7
8