31. Our sense of smell also helps us to recognize which of the following?
[A] tastes
[B] temperature
[C] environment
[D] time
Show Answer
Correct Answer: A [tastes]
Notes:
Our sense of smell also helps us to recognize tastes.
32. Which of the following bones listed is an example of a long bone?
[A] Ribs
[B] Ulna
[C] Phalanges
[D] Phalanges
Show Answer
Correct Answer: B [Ulna]
Notes:
Ulna is located in the medial forearm when the arm is in the anatomical position.
33. 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.
34. The ovary is surrounded by a thin covering of ___.
[A] epithelium
[B] ampulla
[C] isthmus
[D] infundibulum
Show Answer
Correct Answer: A [epithelium]
Notes:
The ovary is surrounded by a thin covering of epithelium, surrounds the ovarian stroma, and is divided into two regions – the outer cortex and the inner medulla.
35. A test is used to determine the sex of the fetus:
[A] Amniocentesis
[B] Amyliodogenesis
[C] Amnionic
[D] Fluidic
Show Answer
Correct Answer: A [Amniocentesis]
Notes:
A test is used to determine the sex of the fetus is Amniocentesis.
36. Mastitis refers to which of the following?
[A] Inflammation of nephrons
[B] Inflammation of neurons
[C] Inflammation of Udders
[D] Inflammation of mast cells
Show Answer
Correct Answer: C [Inflammation of Udders]
Notes:
Mastitis refers to Inflammation of Udders. It is most often caused by infection with the Corynebacterium pyogenes bacterium in dry cows and pre-weaned heifers. Antibiotic treatment provides cure.
37. Which property is not exhibited by a disease-causing pathogen?
[A] Invasiveness
[B] Toxigenicity
[C] Virulence
[D] Co-operation
Show Answer
Correct Answer: C [Virulence]
Notes:
Cooperation is a property that is not exhibited by pathogens. Whereas The invasion of a pathogen is the ability of a host to gain entry and multiply. A virus is the ability of a pathogen to cause disease. Toxicity is the power of a pathogen to form toxins capable of harming host cells.
38. Colour blindness is an __ linked recessive trait.
[A] Z chromosome
[B] Y chromosome
[C] X chromosome
[D] None of these
Show Answer
Correct Answer: C [X chromosome]
Notes:
Usually, color blindness is inherited as a recessive trait on the X chromosome. This is known in genetics as X-linked recessive inheritance.
39. Which of the following organism can transfer ‘T-DNA’ within plants?
[A] Agrobacterium tumifaciens
[B] E.coli
[C] Aspergillus niger
[D] S. typhi
Show Answer
Correct Answer: A [Agrobacterium tumifaciens]
Notes:
Agrobacterium tumefacient organism can transfer ‘T-DNA’ within the plant. It infects dicot plants.
40. What is the basis of classifying various plant tissues as meristematic tissue and permanent tissue?
[A] Size
[B] Dividing capacity
[C] Location
[D] None of the above
Show Answer
Correct Answer: B [Dividing capacity]
Notes:
Based on the dividing capacity of the tissues, various plant tissues can be classified as growing or meristematic tissue and permanent tissue. Meristem is a type of tissue system in plants, composed of a mass of undifferentiated cells and their primary function is to take part in the growth of plants. Permanent tissues are differentiated tissues doing specific functions such as conduction, providing mechanical support or carrying out photosynthesis etc.
