BIOL 100 Midterm exam part A_ Questions & Answers

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BIOL 100 Midterm exam part A 1. The DNA molecule could be compared to a 2. When a cell that contains 46 chromosomes divides by meiosis, the daughter cells will have how many chromosomes 3. Various ... forms of a gene at a given locus are called 4. Four of the five answers listed below concern cells with two chromosome sets. Select the exception. 5. Which of the following designates a normal human female? 6. White blood cells use ____ to get rid of foreign particles in the blood. 7. Four of the five answers listed below are names of kingdoms. Select the exception. 8. The nuclear envelope begins to break up in late 9. Borrelia burgdorferi is the cause of 10. The negative subatomic particle is the 11. The primitive earth's atmosphere did NOT contain 12. Queen Victoria 13. Which term includes the other four? 14. Which is NOT a monosaccharide? 15. Four of the five answers listed below are processes associated with light-dependent reactions. Select the exception. 16. The nucleus of an atom contains 17. Enzymes 18. James Watson and Francis Crick 19. The ability to acquire, store, transfer, or utilize energy is called 20. Histone-DNA units are called 21. The chromosomes and genes are actually replicated during 22. In allopatric speciation, daughter species form 23. Which of the following designates a normal human male? 24. The genetic code is made up of units consisting of how many nucleotides? 25. The nuclear envelope begins to break up in late 26. Which statement is true? 27. The chromosomes are moving to opposite poles during 28. All prokaryotic cells have 29. Science is based on 30. Which branch of genomics deals with the actual mapping and sequencing of genes? 31. According to Darwin, natural selection is based on the ____ found in populations. 32. The introduction of a small population onto an island that results in a limited gene pool for a population best describes 33. A repressor protein binds with 34. The significance of the experiments in which 32P and 35S were used is that 35. Which of the following is not an autosomal dominant genetic disorder? 36. The earliest eukaryotic fossil of a still extant group was a(n) ____ fossil. 37. Which of the following can affect whether transcription can occur? 38. Which is a "building block" of carbohydrates? 39. Water is an example of a(n) 40. Cell membranes are characterized by the presence of 41. Four of the five plants have actually been engineered. Select the exception. 42. Most carbon enters the web of life through 43. Four of the five answers listed below are familiar organelles in the cytoplasm. Select the exception. 44. Four of the five answers listed below are features of the lactose operon. Select the exception. 45. Plants need which of the following to carry on photosynthesis? 46. Pleiotropic genes 47. The RNA molecule is made up of how many strands? 48. During enzyme-catalyzed reactions, substrate is a synonym for 49. A regulator gene produces which of the following? 50. Each cell is able to maintain a constant internal environment. This is called 51. What is the form of RNA that carries the code from the DNA to the site where the protein is assembled? 52. New genetic combinations result from 53. Which of the following diseases is NOT caused by a flagellated protozoan? 54. Four of the five answers listed below are participants in photosynthesis. Select the exception. 55. Aerobes use ____ as the final electron acceptor in electron transport phosphorylation. 56. The relative impermeability of membranes to water-soluble molecules is a result of the 57. All atoms of an element have the same number of 58. Male northern sea lions are nearly twice the size of females because 59. In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s). If two dihybrids (Bb Ss) were crossed, the most common phenotype would be 60. The synthesis of an RNA molecule from a DNA template strand is 61. When chlorophyll a molecules absorb energy, the molecules 62. The difference between normal hemoglobin and sickle-cell hemoglobin is in the 63. ATP 64. The positive subatomic particle is the 65. Transcription 66. A disease that is always present but usually restricted to a small part of the population is called 67. Pseudopodia are characteristic of which of the following groups of protozoans? 68. When a population goes through a bottleneck, 69. The place Darwin visited on his trip around the world that had the greatest impact on his thinking was 70. These organelles are sometimes referred to as rough or smooth, depending on the structure. 71. The spindle apparatus becomes visible during 72. Yeasts are members of which of the following group(s)? 73. Plants store their excess carbohydrates in the form of 74. When a molecule is excited by heat, 75. Glucose is stored as ................................. in most complex plants. 76. A repressor protein binds with 77. Which reaction is NOT an exergonic reaction? 78. The sequence of amino acids is the ____ structure of proteins. 79. Prokaryotic cells do NOT have 80. Rosalind Franklin's research contribution was essential in 81. An incompletely dominant gene controls the color of chickens so that BB produces black, Bb produces a slate-gray color called blue, and bb produces splashed white. A second gene controls comb shape, with the dominant gene R producing a rose comb and r producing a single comb. If a pure-breeding black chicken with a rose comb is mated to a splashed white chicken with a single comb in the F2 generation, what fraction of the offspring will be black with rose comb? 82. A dihybrid cross of two contrasting pure-breeding organisms 83. Which of the following indicates homozygous genotypes? 84. Which are examples of prokaryotes? 85. Which of the following membrane proteins is responsible for binding hormones that can switch on a cell? 86. Genetic recombination as a result of crossing over occurs more readily in genes that are located 87. An -NH2 group is a(n) ____ group. 88. Hydrophobic reactions of phospholipids may produce clusters of their fatty acid tails, which form 89. The "big bang" refers to 90. Which chemical has six carbon atoms? 91. The fossil record is incomplete because 92. Red tide can affect 93. The Oxygen released during Photosynthesis comes from: 94. Males who tend to be taller than average and show mild mental retardation may be designated 95. The correct operational sequence of the three processes listed below is: I. glycolysis II. electron transfer III. Krebs 96. Glycogen is a polysaccharide used for energy storage by 97. The chromosomes detach from one another and become visibly separated during 98. Cells with two sets of genetic information are described by the term 99. Which of the following habitats is most likely to be rich in fossils? 100. Genes that are located on the same chromosome [Show More]

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