31. Which of the following is an olfactory organ?
[A] Eye
[B] Ear
[C] Nose
[D] Skin
Show Answer
Correct Answer: C [Nose]
Notes:
The nose is an olfactory organ. This olfactory system helps us perceive different odors. This sense of organ also aids in our sense of taste. The sense of smell is also known as olfaction.
32. What is the function of structural proteins?
[A] generates contractile force
[B] controls contraction
[C] proper alignment of filaments
[D] binds O2
Show Answer
Correct Answer: C [proper alignment of filaments]
Notes:
Proper alignment of filaments is the function of structural proteins.
33. Which gland is considered as the Third eye of the body or biological clock of the body?
[A] Pituitary gland
[B] Pineal gland
[C] Thyroid gland
[D] Adrenal gland
Show Answer
Correct Answer: B [Pineal gland]
Notes:
The pineal gland is also known as the biological clock or third eye of the human body. It controls biological cycles like sleep-wake, breathing, heartbeat, etc.
34. Which of the following is not pure endocrine gland?
[A] Thyroid gland
[B] Thymus gland
[C] Pancreas
[D] Adrenal
Show Answer
Correct Answer: C [Pancreas]
Notes:
The pancreas and gonads are two glands that are not pure endocrine. The pancreas secretes both hormones and enzymes and acts as both endocrine and exocrine.
35. The elastic tissue which connects the cauda epididymis to the scrotal sac is called __.
[A] Caput epididymis
[B] Scrotal ligament
[C] Gubernaculum
[D] Tendinous cord
Show Answer
Correct Answer: C [Gubernaculum]
Notes:
Connects the lower pole of the gonad and epididymis to the future inguinal canal is called the Gubernaculum.
36. The opening of the infundibulum into the body cavity is called?
[A] isthmus
[B] ampulla
[C] ostium
[D] thalamus
Show Answer
Correct Answer: C [ostium]
Notes:
The opening of the infundibulum into the body cavity is called the ostium.
37. Which of Mendel’s laws is against the theory of Blending inheritance?
[A] Law of segregation
[B] Law of dominance
[C] Law of recessive
[D] Law of independent assortment
Show Answer
Correct Answer: A [Law of segregation]
Notes:
The law of segregation states that allelomorphs do not and do not lose their identity, but as long as they separate into different gametes, they remain together until the formation of gametes. There is no law of recurring; This is just part of the law of dominance.
38. What is a trait that “overpowers” and hides another trait is called?
[A] Overpowering trait
[B] Complex trait
[C] Recessive trait
[D] Dominant Trait
Show Answer
Correct Answer: D [Dominant Trait]
Notes:
A dominant Trait is a trait that “overpowers” and hides another trait.
39. What is ELISA?
[A] Using radiolabelled second antibody
[B] Usage of RBCs
[C] Using complement-mediated cell lysis
[D] Addition of substrate that is converted into a colored end product
Show Answer
Correct Answer: D [Addition of substrate that is converted into a colored end product]
Notes:
ELISA stands for enzyme-linked immunoassay. This is a commonly used laboratory test to detect antibodies in the blood. An antibody is a protein produced by the body’s immune system when it detects harmful substances, called antigens.
40. Which of the following is an egg laying mammal?
[A] Bat
[B] Whale
[C] Leafy ant-eater
[D] Spiny ant-eater
Show Answer
Correct Answer: D [Spiny ant-eater]
Notes:
Monotremes are mammals that lay eggs instead of giving birth to live young like marsupials and placental mammals. Among living mammals they include the platypus and four species of echidnas (or spiny anteaters).
