Whole XII Biology Mdcat Online Test-1 2024

1. Life is originated in

2. In which type of genetic drift the number of individuals would be eliminated due to natural catastrophes leaving behind few live individuals to reproduce?

3. How many types of genetic drift are there?

4. In which type of speciation the population become geographically as well as reproductively  isolated

5. In which  type of speciation the reproductive isolation is behavioral rather geographical

6. Neo-darwinism is also known as

7. Who discovered the geological time scale?

8. Pouched animals are also called

9. Keel less sternum in Archaeopteryx provides evidence of

10. T tubules at human skeletal muscles are present at

11. A protein that is complex of three subunits is

12. Sarcolemma is primarily made up of

13. Brachioradialis________

14. Lactic acid accumulation causes

15. Each myosin has a tail terminating in ....globular heads

16. A band is an________

17. A person may die If tetany occurs in

18. Tetanus affects:

19. The quadriceps is the hip....and knee.....

20. The hamstring muscles are  made up of individual muscle______

21. The sliding filament theory was put forward in:

22. Which Inhibits actomyosin interaction?

23. What runs perpendicular to Sarcoplasmic reticulum?

24. The sarcolemma is extensively folded is called

25. "A" band consists of:

26. Muscle fibers inside the epimysium is grouped which is called

27. A muscle fibre is consists of:

28. These muscles have calmodulin in actin filaments instead of troponin

29. How many bones are fused in an adult human being

30. A hollow bone lined by a honey comb like structure called

31. The total number of bones in a pelvic girdle and associate with lower limb bones are

32. synovial fluid is released:

33. Pivot joint is present between

34. The gliding joint is also called

35. Saddle joint is formed between:

36. Which bone forms Shank?

37. Sympathetic Nervous system:

38. Olfactory neuron's axons project directly into

39. Human tongue bears about --- tongue receptors

40. White matter is --- zone of spinal cord

41. Which is located in an Arc b/w the thalamus and cerebrum

42. Which of the following contains Reticular formation

43. The weight of the human brain is

44. Spinal cord terminates  at the level

45. Which of the following cause the hyperpolarization across neurolemma

46. Which of the following more potent with respect to action duration

47. Which of the following increases melanin production during pregnancy in human beings

48. All are functions of glucagon except

49. Active Thyroxin is also called

50. Islets of langerhans contain large count of

51. Which one of the following is known as efferent neuron?

52. Which part of the male reproductive system is responsible for the production of sperm?

53. Which hormone is crucial for regulating the water balance in the body by affecting kidney function?

54. The hormone responsible for regulating the sleep-wake cycle is:

55. Which of the following hormones is involved in the fight-or-flight response?

56. Which hormone is responsible for lowering blood glucose levels?

57. Which Statement describes the Epistasis best

58. In epistasis the gene which is being masked is called

59. Which of the following is example of mulatto

60. in which of the following Transfusions Agglutination does not occur

61. Which of the following type of blood group only Heterozygous genotype is possible?

62. in which type of Inheritance the Alleles work in Additive manner

63. AB blood group is the best example of

64. Wheat grain colour of genotype Aabbcc is:

65. After fertilization-embryo is implanted in____________.

66. Testes are maintained at ________temperature than the human body's normal temperature.

67. Event of menstrual cycle are regulated by______

68. Ovulation occurs on which day of the ovarian cycle?

69. Fertilization occurs in_______

70. Lyeding cell release______

71. Lyedig cells are present________

72. What is another term for miscarriage?

73. Webbing of toe is:

74. What is correct about blood groups?

75. Which cross would give 1:1 ratio?

76. What phenotypic ratio would you suppose in the offspring from a cross between heterozygous tall-round and homozygous recessive garden-pea plant?

77. If a man with hemophilia marries a female who is heterozygous for hemophilia. What % of

their male childrens sons would be expected to be hemophilic?

78. A heterozygous purple-flowered pea plant is crossed with another homozygous purple-flowered plant. What % of offspring has recessive traits?

79. It plays an important role in linking genetics and evolution.

80. How many homologues chromosomes are present in Pisum sativum?

81. Organisms Genetic constitution is called______

82. Which of the following is known as a fruit fly?

83. Green pod colour is a ________in phenotype

84. Rh factor is found from

85. The breakdown of erythrocytes produce

86. The International society of blood transfusion has found type of blood group system

87. Blood group which is an example of codominance:

88. Which of the following blood groups is transfused to a girl whose Blood group is not known?

89. One of the numerous possible forms of the gene is_______

90. Which colour blindness is called true colour blindness?

91. Multiple alleles are due to_____

92. Blue colour blindness is linked with__________Chromosomes Located on______number.

93. Hemophilia is cause due to_______

94. In the absence of natural selection and genetic drift, gene flow leads to_______among demes within a _________.

95. Speciation is the process of formation of new species of living organisms,  is a___________process.

96. Prokaryotes came into existence_____.

97. The primary male sex hormone responsible for the development of male reproductive tissues and secondary sexual characteristics is:

98. What term describes the initial cell formed when a sperm cell unites with an egg cell?

99. The hormone primarily responsible for the development of female secondary sexual characteristics is:

100. The process by which a mature egg is released from the ovary is called: