31. Which of the following is not a symptom of rinderpest?
[A] dysentery
[B] fever
[C] overcrowding
[D] blue urine
Show Answer
Correct Answer: D [blue urine]
Notes:
Symptoms of rinderpest include constipation with hard stools containing fever, dysentery or blood, discharge from the eyes and nose, anorexia, leukopenia followed by diarrhea or diarrhea with an unpleasant odor.
32. Which of the following organism causes pneumonia?
[A] Bacteria
[B] Protozoan
[C] Fungi
[D] Slime mould
Show Answer
Correct Answer: A [Bacteria]
Notes:
A common cause of bacterial pneumonia is Streptococcus pneumoniae. This is an infection of your lungs caused by certain bacteria.
33. Which of the following is an example of starch crops biomass feedstocks?
[A] Sugar cane
[B] Wheat straw
[C] Corn stover
[D] Orchard prunings
Show Answer
Correct Answer: A [Sugar cane]
Notes:
Sugar cane is an example of starch crops biomass feedstocks. Biomass feedstocks include forest product waste, agricultural residues, organic fractions of municipal solid waste, paper, cardboard, plastics, food waste, green waste, and other wastes.
34. Jaws are absent in ____:
[A] Birds
[B] Fishes
[C] Reptiles
[D] Protochordata
Show Answer
Correct Answer: D [Protochordata]
Notes:
Jaws are absent in protochordata and cyclostomata (Agantho stoma). Protochordata refers to invertabrate subphylum of phylum chordata. It includes animals such as tunicates.
35. When a single gene controls the expression of more than one character, it is said to be ___:
[A] Heterotrophic
[B] Autotrophic
[C] Pleiotropic
[D] Allotropic
Show Answer
Correct Answer: C [Pleiotropic]
Notes:
When a single gene has an effect on the expression of two or more phenotypic traits, it is said to have a pleiotropic effect on the traits. For example, testosterone controls the development of what are referred to as secondary sexual characteristics, but it also relates to behavioral traits like aggression. Thus, a gene that controls the levels of testosterone would have a pleiotropic effect on the expression of many secondary sexual traits which are morphological, as well as behavioral.
36. Stethoscope works on which principle?
[A] Reflection of sound
[B] Reflection of light
[C] Conversion of current into sound
[D] Conversion of sound into current
Show Answer
Correct Answer: A [Reflection of sound]
Notes:
The stethoscope is an acoustic medical device listening to the internal sounds of an animal or human body. It typically has a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces. Working of a stethoscope is based on reflection of sound. In a stethoscope, the sound of the patient’s heartbeat reaches the doctor’s ear by multiple reflections of sound.
37. Which one of the following animals belongs to mollusca?
[A] Haliotis
[B] Hare
[C] Hydra
[D] Hyla
Show Answer
Correct Answer: B [Hare]
Notes:
Sea hares are molluscs. They belong to Phylum Mollusca and Class Gastropoda like snails. Like many other sea slugs (Subclass Opistobranchia), sea hares lack external shells as adults. Sea hares belong to Order Anaspidea.
38. Which part of the human body gets affected by the illness called osteoporosis?
[A] Bones
[B] Lungs
[C] Kidney
[D] Brain
Show Answer
Correct Answer: A [Bones]
Notes:
Osteoporosis, or porous bone, is a disease characterized by low bone mass/density and structural deterioration of bone tissue, leading to bone fragility and an increased risk of fractures of the hip, spine, and wrist. Men as well as women are affected by osteoporosis, a disease that can be prevented and treated.
39. Which blood group is universal donor?
[A] O+
[B] O–
[C] AB–
[D] AB+
Show Answer
Correct Answer: B [O–]
Notes:
Universal donor is a person who is type O in the ABO blood group system and negative for RhD blood group antigen and can donate blood to all recipients. O- blood type doesn’t have antigen for A or B and Rh antigen on the surface of its RBCs. Because of the absence of Rh factor, O- blood type can be given to patients of either Rh type.
40. Which of the following is true with reference to blood platelets?
[A] They have prominent nuclei
[B] They are involved in phagocytosis
[C] They have a pigment called haemoglobin
[D] They are also called thrombocytes
Show Answer
Correct Answer: D [They are also called thrombocytes]
Notes:
Platelets, also called thrombocytes, are a component of blood whose function is to stop bleeding by clumping and clotting blood vessel injuries. Unlike red and white blood cells, platelets are not actually cells but rather small fragments of cells.
