NEET - Biology - Part1

1. Which of the following pairs is not correctly matched?

1. Dengue fever - Arbovirus.

2. Plague - Yersinia Pestis.

3. Syphilis - Trichuris trichura.

4. Sleeping - Trypanosoma sickness gambience.

The pair that is not correctly matched is:

Syphilis - Trichuris trichura.

Syphilis is not caused by Trichuris trichura. Syphilis is caused by the bacterium Treponema pallidum, whereas Trichuris trichura is a parasite that causes an infection called trichuriasis, not syphilis.

2. Antigens are present (1) Inside the nucleus (2) On the cell surface (3) Inside the cytoplasm (4) On the nuclear membrane. - (2) On cell surface

3. Which of the glands is often referred to with AIDS? (1) Thyroid (2) adrenal (3) Thymus (4) Pancreas. - (3) Thymus

4. AIDS spread through – (1) Immoral way of life (2) Infected needles and syringes (3) Homosexuality (4) All of the above. (4) All of the above

5. Yersinia causes (1) Plague (2) Whooping cough (3) Leprosy (4) Syphilis. - (1) Plague

6. Rickettsia’s are (1) Viruses (2) Bacteria (3) Intermediate forms between viruses and bacterial cells, and (4) Bacteria and plant cells. - (2) Bacteria

7. The street virus affects (1) Kidney (2) CNS (3) Lungs (4) Eyes. - (2) CNS (Central Nervous System)

8. Immunoglobulins are (1) Antigen (2) Antibodies (3) Antiseptics (4) Antibiotics. - (2) Antibodies

9. The interferons are (1) Antiviral proteins (2) Antibiotic proteins (3) Antigen proteins (4) All of these. - (1) Antiviral proteins

10. The infective stage of Entamoeba histolytica (1) Binucleate form (2) Tetranucleate form (3) Minuta form (4) Sporozoite stage. - (4) Sporozoite stage (or) Tetranucleate form.

11. If you keep the sanitary system around yourself sound then the disease that will not most probably break out is: (1) Cholera (2) Malaria (3) Beri-beri (4) Scurvy. - (1) Cholera

12. Which pair of diseases is viral? (1) Cholera and TB (2) AIDS and Syphilis (3) Mumps and Rabies (4) Tetanus and Typhoid. - (3) Mumps and Rabies

13. The main reasons, why antibodies could not solve all the problems of bacteria-mediated disease, are (1) The Development of mutant strains resistant to antibodies (2) The Inactivation of antibodies by bacterial enzymes (3) Decreased efficiency of the immune system (4) Insensitivity of the individual following prolonged exposure to antibiotics. - (1) Development of mutant strains resistant to antibodies

14. Colostrum, the first milk secretion of mammary glands is rich in immunoglobulin (1) IgE (2) IgM (3) IgA (4) IgG. - (3) IgA

15. In alcoholics, the liver gets damaged as it: (1) Secretes more bile (2) Stores excess glycogen (3) accumulates excess fats (4) All of these. - (3) Accumulates excess fats

16. Tuberculosis is caused by (1) Mycobacterium (2) Vibrio (3) Clostridium, and (4) Nitrobacter. - (1) Mycobacterium

17. Which of the following is not a water-borne disease? (1) Asthma (2) Cholera (3) Amoebiasis (4) All of these. - The correct answer is (1) Asthma. Asthma is not a waterborne disease; it is a respiratory condition characterized by inflammation and narrowing of the airways, typically triggered by allergens or irritants. The other options, Cholera (2) and Amoebiasis (3) are waterborne diseases caused by specific pathogens transmitted through contaminated water sources. So, the correct answer is (1) Asthma.

18. The narcotic drug morphine is used as (1) Anti-cancerous (2) Hallucinogen (3) Anaesthetic drug (4) Analgesic. - The correct answer is (4) Analgesic. Morphine is commonly used as a potent pain reliever or analgesic. It is often prescribed for severe pain, such as that experienced by patients with cancer or after major surgery.

19. Which of the following has been declared a killer disease under the Factory Act? (1) Asbestosis (2) Leprosy (3) Tuberculosis (4) Shigellosis. - (1) Asbestosis

20. Which of the following pairs of diseases is caused by a virus? (1) Typhoid and tetanus (2) AIDS and syphilis (3) Rabies and mumps (4) Cholera and Tuberculosis. - (3) Rabies and mumps.

21. Irrational fear of disease is called: (1) Myophobia (2) Pathophobia (3) Algophobia (4) Haematophobia. - (2) Pathophobia

22. When the body cannot differentiate between its own and foreign matter it is (1) Passive immunity (2) Active immunity (3) Autoimmunity (4) Immunodeficiency. - (3) Autoimmunity

23. The discovery of the AIDS virus is related to (1) Alexander Fleming (2) W. Canon (3) L. Montagnier (4) Stanley Cohen. - (3) L. Montagnier

24. The growth and reproduction are mutually exclusive events in (1) Plants only (2) Animals only (3) Higher animals and plants (4) Lower organisms. - (3) Higher animals and plants

25. The total of chemical reactions occurring in our body is called (1) Metabolism (2) Homeostasis (3) Irritability (4) Catabolism. - (1) Metabolism

26. Mark the correct statement (1) Only living organisms grow (2) Plants grow only up to a certain age (3) The growth in living organisms is from inside (4) All of these. - (3) The growth in living organisms is from inside.

27. Which of the following is multiplied by the process of fragmentation? (1) Planaria (2) Filamentous algae (3) Fungi (4) All of these. - (4) All of these

28. Which of the following is the defining feature of all living organisms? (1) Growth (2) Metabolism (3) Reproduction (4) Self-consciousness. - (2) Metabolism

29. The number of common characteristics is the maximum in the following taxon (1) Class (2) Order (3) Family (4) Phylum. - (3) Family.

30. Given below is the botanical name of mango. Mark the option in which the name is correctly written (1) Magnifera Indica (2) Mangifera Indica (3) Mangifera Indica (4) Mangifera Indica. - (4) Mangifera indica

31. Identify the correct sequence of taxonomic categories (1) Species-order-kingdom-phylum (2) Species-family-genus-class (3) Genus-species-order-phylum (4) Species-genus-order-phylum. - (4) Species-genus-order-phylum

32. The famous botanical garden ‘Kew’ is in (1) England (2) Lucknow (3) Berlin (4) Australia. - (1) England

33. The ‘Birds’ taxonomically represent (1) Family (2) Order (3) Class (4) Phylum. - (3) Class

34. The following taxonomist is called the ‘Darwin of the 20th century’. (1) Julian Huxley (2) Carolus Linnaeus (3) Whittaker (4) Ernst Mayr. - (4) Ernst Mayr

35. The Indian Botanical Garden is in (1) Howrah (2) Lucknow (3) Mumbai (4) Mysore. - (1) Howrah

36. The following taxonomic aid provides information for the identification of names of species found in an area (1) Monograph (2) Manual (3) Memoir (4) Periodical. - (2) Manual

37. The family ‘Felidae’ includes (1) cats (2) Tigers (3) Lions (4) All of these. - (4) All of these

38. The term ‘Taxon’ is used for (1) The ranks of species and genus (2) The ranks up to phylum (3) The species epithet only (4) Any rank of taxonomic hierarchy. - (4) Any rank of taxonomic hierarchy

39. The assemblage of families with common features is called (1) Class (2) Phylum (3) Genus (4) Order. - (4) Order

40. The binomial nomenclature was given by (1) Lamarck (2) Ernst Mayr (3) Carolus Linnaeus (4) Cuvier. - (3) Carolus Linnaeus

41. Under which type is the egg of birds classified (1) Microlecithal eggs (2) Mesolecithal eggs (3) Macrolecithal eggs (4) Alecithal eggs. - (3) Macrolecithal eggs

42. Vitelline membrane in mammal is known as (1) Zona pellucida (2) Corona radiate (3) Area pellucida (4) Perivitelline membrane. - (1) Zona pellucida.

43. The QRS complex in a standard ECG represents (1) The Depolarization of ventricles (2) The Repolarization of ventricles (3) The Repolarization of auricles (4) The Depolarization of auricles. - (1) Depolarization of ventricles

44. Pepsinogen is secreted by (1) Mucous glands (2) Intestinal glands (3) Chief cells (4) Parietal cells. - (3) Chief cells (Gastric chief cells).

45. The Chipko movement was launched for the protection of (1) Wetlands (2) Forest (3) Grasslands (4) Livestock. - (2) Forest (in 1917).

46. In which of the following groups all animals are triploblastic (1) Annelida, Mollusca, Porifera (2) Arthropoda, cnidaria, Annelida (3) Mollusca, Echinodermata, Annelida (4) Mollusca, Ctenophora, Arthropoda. - (3) Mollusca, Echinodermata, Annelida

47. Which of the following pairs is of unicellular algae? (1) Anabaena Volvox (2) Chlorella and Spirulina (3) Laminaria and Sargassum (4) Gelidium and Gracilaria. - (2) Chlorella and Spirulina

48. Flippers of penguins and dolphins are examples of (1) Industrial melanism (2) Natural selection (3) Adaptive radiation (4) Convergent evolution. - (4) Convergent evolution

49. Coacervates were experimentally produced by (1) Oparin and Sidney Fox (2) Fischer and Huxley (3) Jacob and Monod (4) Urey and Miller. - (1) Oparin and Sidney Fox

50. The passage of action of potential from one node to Ranvier to the next is (1) Nodal conduction (2) Saltatory conduction (3) Threshold stimulus (4) Mechanical conduction. - (2) Saltatory conduction.

51. The process by which seedless fruits are produced is known as (1) Parthenocarpy (2) Apogamy (3) Parthenogenesis (4) Apospory. - (1) Parthenocarpy

52. Formation of embryo directly from nucellus and integuments is: (1) Adventive polyembryony (2) Apospory (3) Apogamy (4) Apomixis. - (1) Adventive polyembryony.

53. A fruit fly exhibiting both male and female traits is (1) Heterozygous (2) Gynandromorph (3) Hemizygous (4) Gynander. - (2) Gynandromorph

54. The plant on which Hugo de Vries based his evolution theory is (1) Antirrhinum majus (2) Lathyrus odoratus (3) Evening primrose (4) Pisum sativum. - (3) Evening primrose

55. The centrum of the 8th vertebra of a frog is (1) Procoelous (2) Acoelous (3) Amphiplatyan (4) Amphicoelous. - (4) Amphicoelous

56. A person with a chromosome complement of XXX is (1) Klinefelter’s syndrome (2) Down’s syndrome (3) Turner’s syndrome. (4) Super female. - (4) Super female

57. A group of simple fruit developed from a single flower is (1) Cypsela (2) Caryopsis (3) Etaerio (4) Berry. - (3) Etaerio

58. An amino acid without an asymmetrical carbon atom is (1) Histidine (2) Threonine (3) Phenylalanine (4) Glycine. - (4) Glycine

59. Who created the first rDNA (recombinant DNA) molecule (1) Nathan, Arber, and Smith (2) Watson, Crick, and Wilkins (3) Boyer and Cohen (4) Paul Berg. - (4) Paul Berg

60. Calyptra around the sporophyte of a bryophyte is derived from (1) Columella (2) Antheridium (3) Archegonium (4) Capsule. - (3) Archegonium

61. The arrangement of flowers on the flora axis is known as (1) Venation (2) Phyllotaxy (3) Anthology (4) Aestivation. - (4) Aestivation

62. Double fertilization and triple fusion were discovered by (1) Winkler (2) Nawaschin (3) Strasburger (4) Leeuwenhoek. - (2) Nawaschin

63. Diagrammatic representation of chromosomes is (1) Karyotype (2) Idiogram (3) Chromosome map (4) Phenogram. - (2) Idiogram

64. Cercaria stage of Fasciola hepatica leads to (1) Sporocyst (2) Redia (3) Miracidium (4) Metacercaria. - (4) Metacercaria

65. The first phase of translation is (1) Aminoacylation of tRNA (transfer RNA) (2) Recognition of an anti-codon (3) Binding of mRNA to ribosome (4) Recognition of DNA molecule. - (1) Aminoacylation of tRNA (transfer RNA).

66. Which of the following is the hierarchical sequence (1) Phylum, class, order, family (2) Phylum, division, family, class (3) Genus, species, order, family (4) Division, order, class, genus. - (1) Phylum, class, order, family

67. Two similar holotypes specimens are called (1) Mesotypes (2) Meotypes (3) Syntypes (4) Isotypes. - (4) Isotypes.

68. Addison’s disease is due to the under-secretion of (1) Insulin (2) Adrenaline (3) ACTH (4) Corticoids. - (4) Corticoids (Corticoids released from the adrenal cortex).

69. Select the incorrect statement regarding Agnatha (1) They are anadromous (2) Paired nostrils are present (3) Scales and fins are absent (4) Typhlosole is present. - (4) Typhlosole is present

70. The membrane stabilizing molecule present in the cell wall of bacteria (1) Ergo sterol (2) Stigma sterol (3) Chitin (4) Hopanoids. - (4) Hopanoids