50. Isolated populations will lose a percentage of their original diversity over time, approximately
Ⅱ.【單選題】51-75 題，每題 2 分，共計 50 分。答錯 1 題倒扣 0.5 分，倒扣至本大題零分為止，未作答，不給分亦不扣分。51. Which of the following state
52. In present populations of Taiwan Hwa-Mei (Leucodioptron taewanum) in Taiwan, genetic diversity h
54. Which of the following mating systems does the Pheasant-tailed Jacana (Hydrophasianus chirurgus)
55. When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generatio
56. Sequencing an entire genome, such as that of Caenorhabditis elegans, a nematode, is most importa
57. Countercurrent exchange in the fish gill helps to maximize which of the following?(A) endocytosi
58. Sexual reproduction(A) allows animals to conserve resources and reproduce only during optimal co
62. Hypothetical mutation in a squirrel population produces organisms with eight legs rather than fo
63. Species that are not closely related and that do not share many anatomical similarities can stil
64. Animal communication involves what type of sensory information?(A) visual (B) auditory (C) chemi
65. Which of the following statements about histone acetylation is WRONG?(A) Histone acetylation usu
2. Contact of a sperm with signal molecules in the coat of an egg causes the sperm to undergo _____.
66. Which of the following statements is true?(A) miRNAs are made from long dsRNAs, whereas siRNAs a
67. Attaching the activation domain of Gal4 to the Tet (tetracycline) repressor creates a hybrid pro
68. In a neuron at rest, which of the following is true?(A) Leakage of sodium ions into the neuron i
69. Which is NOT involved in RNA editing?(A) site-specific deamination of adenines (B) site-specific
3. Only certain cells in the body are target cells for the steroid hormone aldosterone. Which of the
4. Which of the following is a local regulator responsible for activating an enzyme that relaxes smo