1. Which among the following causes Hydrophobia?
[A] Virus
[B] Bacteria
[C] Protozoan
[D] worm
Show Answer
Correct Answer: A [Virus]
Notes:
Hydrophobia which is also known as Rabies is a viral disease that causes inflammation of the brain in humans and other mammals. Some of the early symptoms can include fever and tingling at the site of exposure.
2. Which among the following test is most suitable to judge paternity ?
[A] Blood Grouping
[B] Tissue Culture
[C] DNA Test
[D] Genetic Codes
Show Answer
Correct Answer: C [DNA Test]
Notes:
DNA test is most suitable to judge paternity. It looks at specific locations of a person’s genome, in order to find or verify
ancestral genealogical relationships. It can also be used to estimate the ethnic mixture of an individual.
3. Any disease which has a name with a suffix encephalitis is a disorder of ______?
[A] Nerves
[B] Brain
[C] Lungs
[D] Heart
Show Answer
Correct Answer: B [Brain]
Notes:
Encephalitis is an inflammation of the brain tissue. The most common cause is viral infections which is caused by bacteria or even fungi. There are two main types of encephalitis: primary Encephalitis and secondary Encephalitis.
4. Which one of the following is responsible for maintenance of osmotic pressure in blood?
[A] Fibrinogen
[B] Red Blood Cells
[C] Albumin
[D] Platelets
Show Answer
Correct Answer: C [ Albumin]
Notes:Albumin is a protein found in the blood plasma, and it plays a crucial role in regulating osmotic pressure. It helps to maintain the balance of fluids between the blood vessels and the surrounding tissues. Albumin exerts an osmotic pressure that prevents the excessive loss of fluid from the blood vessels into the tissues.
Fibrinogen, Red Blood Cells, and Platelets have different functions in the blood, but they are not primarily responsible for maintaining osmotic pressure. Fibrinogen is involved in blood clotting, Red Blood Cells are responsible for carrying oxygen, and Platelets play a role in blood clotting as well.
5. With reference to classification of the flora and fauna, the meaning of term “Taxon” is __?
[A] A group of same species
[B] A group of organisms with same chromosome number
[C] A group of category of organisms
[D] A group of same genera
Show Answer
Correct Answer: C [ A group of category of organisms]
Notes:
In biology, a taxon (plural taxa; back-formation from taxonomy) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.
6. White-nose syndrome (WNS) is an emerging disease among which of the following fauna?
[A] Bats
[B] Snow leopard
[C] Bumblebee
[D] Forest owlet
Show Answer
Correct Answer: A [ Bats]
Notes:
White-nose syndrome (WNS) is an emergent disease of hibernating bats that has spread from the north-eastern to the central United States at an alarming rate.
7. Which of the following define the hormone insulin? (UPSC Prelims 2004)
[A] Glycolipid
[B] Fatty acid
[C] Peptide
[D] Stero
Show Answer
Correct Answer: C [Peptide]
Notes:
Insulin is a protein chain or peptide hormone. There are 51 amino acids in an insulin molecule. It has a molecular weight of 5808 Da. Insulin is produced in the islets of Langerhans in the pancreas.
8. Splanchnology is a branch of biology dealing with __?
[A] Study of visceral organs
[B] Study of species
[C] Study of bony joints and ligaments
[D] Study of forget including buccal cavity and stomach
Show Answer
Correct Answer: A [Study of visceral organs]
Notes:
Splanchnology is the study of the visceral organs, i.e. digestive, urinary, reproductive and respiratory systems.
9. In which of the following hemocaelic body cavity is found?
[A] Cockroach
[B] Lizard
[C] Mosquito
[D] Honeybee
Show Answer
Correct Answer: A [Cockroach]
Notes:
Hemocoelic body cavity is a characteristic of Cockroach.
10. Which of the following contains an anticodon?
[A] tRNA
[B] mRNA
[C] rRNA
[D] DNA
Show Answer
Correct Answer: A [tRNA]
Notes:
An anticodon is found at one end of the transfer RNA (tRNA) molecule. During protein synthesis, each time an amino acid is added to the growing protein. A tRNA forms base pairs with its complementary sequence on the mRNA molecule and ensures that the appropriate amino acid is inserted into the protein.
