31. Which of the following pairs is most closely related?
[A] rat and shrew
[B] dog and cat
[C] horse and cow
[D] sea lion and dolphin
Show Answer
Correct Answer: B [dog and cat]
Notes:
Dog and cat pairs are most closely related. Cats and dogs are both in the Carnivora order. They belong together, related to one another by a common ancestor.
32. Conductive hearing loss can be caused by__
[A] Ear infections
[B] Loss of the small hairs in the cochlear
Loss of the small hairs in the cochlear
[C] Nerve damage
[D] Loud noise
Show Answer
Correct Answer: A [Ear infections]
Notes:
There are three types of hearing loss: conductive, sensorineural, or a combination of both.
Conductive hearing loss is caused by a buildup of wax in the outer ear or middle ear, scarring of the eardrum after repeated middle ear infections, or destruction of the small bones in the ear.
33. Which of the following part of the brain processes smell?
[A] Olfactory cortex
[B] Amygdala
[C] Olfactory bulb
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The olfactory cortex, Amygdala, and Olfactory bulb are parts of the brain processes smell.
1. Olfactory Cortex is the portion of the cerebral cortex concerned with the sense of smell.
2. The amygdala is processing fearful and threatening stimuli.
3. The olfactory bulbs receive information about odors from the nose and send it to the brain via the olfactory tract.
34. Bi-focal lenses are required to correct __
[A] astigmatism
[B] coma
[C] myopia
[D] presbyopia
Show Answer
Correct Answer: D [presbyopia]
Notes:
Bifocals are glasses that have both a correction for your distance vision on the top of the lens and a correction to help you read at the bottom.
35. Finger bones are also known as __?
[A] Hamate bone
[B] Girdles
[C] Phalanges
[D] Metacarpal
Show Answer
Correct Answer: C [Phalanges]
Notes:
The phalanges of the hands are the tubular bones of the fingers and thumb.
36. What are the cells involved in innate immunity?
[A] Phagocytes
[B] Macrophages
[C] Natural Killer Cells
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Innate immune cells are white blood cells. It mediates innate immunity and includes basophils, dendritic cells, eosinophils, Langerhans cells, mast cells, monocytes and macrophages, neutrophils and NK cells.
37. Wooden tongue in cattle is caused by which of the following bacteria?
[A] Sphaerophorus necrophorus
[B] Clostridium chauvoei
[C] Actinobacillus lignieresi
[D] Erysipelothrix insidiosa
Show Answer
Correct Answer: C [Actinobacillus lignieresi]
Notes:
Wooden tongue in cattle is caused by Actinobacillus lignieresi bacteria.
38. The smallest unit of genetic material that produces a phenotypic effect on mutation is called?
[A] Muton
[B] Gene
[C] Recon
[D] Nucleic acid
Show Answer
Correct Answer: A [Muton]
Notes:
The smallest unit of genetic material that produces a phenotypic effect on mutation is called Muton.
39. The point mutation results in a change in the codon, which then codes for another amino acid is called __
[A] Silent mutation
[B] Nonsense mutation
[C] Missense mutation
[D] None of these
Show Answer
Correct Answer: C [Missense mutation]
Notes:
The point mutation results in a change in the codon, which then codes for another amino acid is called Missense mutation.
40. ____ being a higher category, is the assemblage of families which exhibit a few similar characters:
[A] Class
[B] Species
[C] Genus
[D] Order
Show Answer
Correct Answer: D [Order]
Notes:
Order is an assemblage of families which exhibit a few similar characters. The similar characters are less in number as compared to different genera included in a family. A class includes one or more orders.
