31. Which of the following is present in the oral cavity or buccal cavity?
[A] teeth
[B] tongue
[C] salivary glands
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Teeth, tongue, and salivary glands are present in the oral cavity or buccal cavity.
32. Name the hormone which takes part in the release of FSH and LH from the anterior pituitary.
[A] Growth hormone
[B] GnRH
[C] Somatostatin
[D] TRH
Show Answer
Correct Answer: B [GnRH]
Notes:
GnRH is the gonadotropin-releasing hormone, which is responsible for the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
33. Which of the following diseases can be transmitted to humans during milking?
[A] foot and mouth disease
[B] smallpox
[C] Ranikhet
[D] Cowpox
Show Answer
Correct Answer: D [Cowpox]
Notes:
Cowpox diseases can be transmitted to humans during milking. Cowpox is an infectious disease caused by the cowpox virus.
34. Chickenpox is a highly contagious disease caused by the __
[A] Pasteurella pestis
[B] Bacillus anthracis
[C] Bordetella pertussis
[D] Varicella zoster
Show Answer
Correct Answer: D [Varicella zoster ]
Notes:
Chickenpox is a highly contagious disease caused by the varicella zoster virus.
35. What are the symptoms of brucellosis in animals?
[A] arthritis in cows and pigs
[B] mastitis and lameness in goats
[C] oozing skin lesions in horses
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Arthritis in cows and pigs, mastitis and lameness in goats, and oozing skin lesions in horses are the symptoms of brucellosis in animals.
36. What diseases are caused by Staphylococcus aureus?
[A] skin infections
[B] endocarditis
[C] osteomyelitis
[D] All of these
Show Answer
Correct Answer: D [All of these]
Notes:
Skin infections and sometimes pneumonia, endocarditis, and osteomyelitis diseases are caused by Staphylococcus aureus. It is a type of Gram-positive round-shaped bacteria.
37. Sugar crops to produce __
[A] biomethane
[B] bioethanol
[C] biobutanol
[D] None of these
Show Answer
Correct Answer: B [bioethanol]
Notes:
Bioethanol is produced by fermentation of residues from corn, potatoes, cereals, sugar beets, sugarcane and vegetables.
38. Klenow fragment is derived from which of the following?
[A] DNA Ligase
[B] DNA Pol-I
[C] DNA Pol-II
[D] Reverse Transcriptase
Show Answer
Correct Answer: B [DNA Pol-I]
Notes:
Klenow fragment is derived from DNA Pol-I. A Klenow fragment is a large protein fragment. It is enzymatically cleaved by the protease subtilisin to DNA polymerase from E. coli.
39. What is the function of a polymerase chain reaction?
[A] catalyze the joining (ligation) of two large molecules
[B] amplify pieces of DNA
[C] Both 1 and 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: B [amplify pieces of DNA]
Notes:
A polymerase chain reaction is a chemical reaction used by molecular biologists to amplify fragments of DNA.
40. What is the normal blood pressure in human beings?
[A] 120/90
[B] 120/80
[C] 140/90
[D] 140/100
Show Answer
Correct Answer: B [120/80]
Notes:
According to the American Heart Association (AHA), normal blood pressure is a systolic pressure of less than 120 millimeter of mercury (mm Hg) and a diastolic pressure of less than 80 mm Hg, or 120/80 mm Hg. Having a blood pressure greater than 140/ 90 mm Hg is considered high blood pressure or hypertension.
