31. Which gland is located on both sides of the Trachea?
[A] Thymus
[B] Thyroid
[C] Adrenal
[D] Pineal
Show Answer
Correct Answer: B [Thyroid]
Notes:
The thyroid gland has two lobes, one on each side of the trachea, just below the larynx or voice box. The two lobes are connected by a narrow band of tissue called the isthmus. Internally, the gland contains follicles, which are responsible for producing the hormones thyroxine and triiodothyronine.
32. The adrenal cortex secretes all except __
[A] Androgenic steroid
[B] Cortisol
[C] Relaxin
[D] Aldosterone
Show Answer
Correct Answer: C [Relaxin]
Notes:
The adrenal cortex secretes all except Relaxin. Relaxin is produced primarily by the corpus luteum.
33. Which of the following female reproductive organs produces female hormones?
[A] Uterus
[B] Fallopian Tubes
[C] Ovaries
[D] None of these
Show Answer
Correct Answer: C [Ovaries]
Notes:
Ovaries are the female reproductive organs that are responsible for producing various hormones and produce female gametes.
34. Which of the following vectors is responsible for transmitting the parasite causing filariasis?
[A] Anopheles mosquito
[B] Aedes mosquito
[C] Tse Tse fly
[D] Culex mosquito
Show Answer
Correct Answer: D [Culex mosquito]
Notes:
Culex mosquito vectors are responsible for transmitting the parasite causing filariasis.
35. Mendel used which of the following one for his experiments.
[A] Pisum sativum
[B] Pisum album
[C] Oryza sativa
[D] Oryza Orientalis
Show Answer
Correct Answer: A [Pisum sativum]
Notes:
Mendel used Pisum sativum (peas)for his experiments because they saw many distinctive features in it and it could be easily grown and self-pollinated.
36. Which of the following is known as the “Father of Genetics”?
[A] Morgan
[B] Mendel
[C] Watson
[D] Bateson
Show Answer
Correct Answer: B [Mendel]
Notes:
Mendel is known as the “Father of Genetics”.
37. Which two ideas are included in the definition of biotechnology?
[A] Medical biotechnology and Agricultural biotechnology
[B] Traditional biotechnology and Modern molecular biotechnology
[C] Blue biotechnology and Red biotechnology
[D] Green biotechnology and Animal biotechnology
Show Answer
Correct Answer: B [Traditional biotechnology and Modern molecular biotechnology]
Notes:
Traditional biotechnology and Modern molecular biotechnology are two ideas included in the definition of biotechnology.
38. What is another important research area of biotechnology offers?
[A] optimum conditions for the catalyst
[B] pure form of catalyst
[C] an impure form of the catalyst
[D] purification of products
Show Answer
Correct Answer: A [optimum conditions for the catalyst]
Notes:
Optimum conditions for the catalyst is another important research area of biotechnology offers.
39. Uric acid is the chief nitrogenous wastes in ____:
[A] Frogs
[B] Birds
[C] Fishes
[D] Mankind
Show Answer
Correct Answer: B [Birds]
Notes:
Land snails, insects, birds, and some reptiles excrete uric acid as the major nitrogenous waste. The white, crystalline substance seen in a typical bird or lizard “poop” is actually urine: a little pool of uric acid crystals in a very small amount of water.
40. Which of the following is the smallest bird?
[A] Parrot
[B] Pigeon
[C] Hummingbird
[D] House sparrow
Show Answer
Correct Answer: C [Hummingbird ]
Notes:
Humming birds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm (3–5 in) range. Indeed, the smallest extinct bird species is a humming bird, the 5-cm Bee Humming bird. These birds being the smallest are, capable of flying both in forward and back direction.
