31. Listeriosis is a serious infection caused by __
[A] Listeria pestis
[B] Listeria monocytogenes
[C] Listeria papillomavirus
[D] None of these
Show Answer
Correct Answer: B [Listeria monocytogenes]
Notes:
Listeriosis is a serious infection caused by Listeria monocytogenes. It is caused by eating food contaminated with the bacterium Listeria monocytogenes.
32. What disease is caused by paramyxovirus?
[A] measles
[B] parainfluenza virus
[C] respiratory syncytial virus
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Measles, mumps, croup, parainfluenza virus, and respiratory syncytial virus are caused by a paramyxovirus.
33. The transfer of genetic traits from parents to their offspring, and these offspring receive all the genetic information from their parents is called__
[A] Inheritance
[B] Genetics
[C] Heredity
[D] None of these
Show Answer
Correct Answer: A [Inheritance]
Notes:
The transfer of genetic traits from parents to their offspring, and these offspring receive all the genetic information from their parents is called Inheritance.
34. Which of the following forestry materials can be used as biomass?
[A] Logging residues
[B] Tallow
[C] Fish oil
[D] Manure
Show Answer
Correct Answer: A [Logging residues]
Notes:
The forestry material used as biomass is accumulating residues. Tallow, fish oil, and manure belong to animal products used as biomass.
35. What is Alzheimer’s disease?
[A] It affects liver
[B] It is a disorder of the brain
[C] It affects kidney
[D] It affects human immune system
Show Answer
Correct Answer: B [It is a disorder of the brain]
Notes:
Alzheimer’s disease is a progressive neurologic disease of the brain leading to the irreversible loss of neurons and the loss of intellectual abilities, including memory and reasoning. These with time become severe enough to impede social or occupational functioning. Alzheimer’s disease is also known as simply Senile Dementia.
36. ____ is a straw coloured, viscous fluid constituting nearly 55 per cent of the blood:
[A] Plasma
[B] Formed Elements
[C] Blood Groups
[D] Coagulation of Blood
Show Answer
Correct Answer: A [Plasma]
Notes:
Plasma is a straw coloured, viscous fluid constituting nearly 55 per cent of the blood. 90-92 per cent of plasma is water and proteins contribute 6-8 per cent of it. Fibrinogen, globulins and albumins are the major proteins. Fibrinogens are needed for clotting or coagulation of blood; while, globulins primarily are involved in defense.
37. The total number of living organisms, both plants and animals, in a given area is called ____:
[A] Buffers
[B] Biomass
[C] Batholith
[D] Barrage
Show Answer
Correct Answer: B [Biomass]
Notes:
A biomass is total quantity of weight of the planet that can be classified according to the plants and animals that live in it. Temperature, soil, and the amount of light and water help determine what life exists in a biome.
38. In which part of the body is blood produced?
[A] Bone Marrow
[B] Lungs
[C] Brain
[D] Heart
Show Answer
Correct Answer: A [Bone Marrow]
Notes:
Bone marrow is the spongy tissue inside bones that produces blood cells. Bone marrow produces red blood cells, platelets, and white blood cells. The process by which blood cells are made is called haemopoiesis.
39. Which part becomes modified as the tusk of elephant?
[A] Premolar
[B] Second incisor
[C] Molar
[D] Canine
Show Answer
Correct Answer: B [Second incisor]
Notes:
Tusks are elongated, continuously growing front teeth (incisors) usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses but in the case of elephants, elongated incisors. In most tusked species both the males and the females have tusks although the males’ are larger.
40. Chromosomes consist of ____:
[A] DNA and lipids
[B] RNA and amino acids
[C] DNA and proteins
[D] RNA and sugar
Show Answer
Correct Answer: C [DNA and proteins]
Notes:
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.
