※ [本文转录自 NTUAC93work 看板] 作者: Jman208 (小豪) 看板: NTUAC93work 标题: [情报] 生物蔡33的期中考就看这边啦~ 时间: Mon Nov 8 18:50:13 2004 当然~这是考古题~考古题~ 答案为黄色字体~~ 今天先 po 考卷A, 改天在 po 考卷B吧! ================================这是考古题分隔线============================== General Biology Midterm Exam (A) Match the followings: (2% each) 01.Transcription of the structural genes in an inducible operon A) Occur all the time. B) Starts when the pathway's substrate is present. C) Starts when the pathway's product is present. D) Stops when the pathway's product is present E) Does not produce enzymes 02.An animal secretary cell and a photosynthetic leaf cell are similar in all of the following ways EXCEPT: A) They both have a Golgi Apparatus. B) They both have mitochondria. C) They both have transport proteins for active transport of ions. D) They both have chloroplasts. E) They both have a cell membrane 03.During the cell cycle, chromosome replicate occurs during which phase A) G1 phase B) G2 phase C) S phase D) M phase 04.Which of the following is/are not found in a prokaryotic cell? A) Ribosomes B) plasma membrane C) Mitochondria D) A) and C) E) A), B), and C) 05.Organelles A) Are membrane - bound compartments B) Are tpical of eukaryotic cells, not prokaryotic cells. C) Separate incompatible reactions in a cell. D) Allow passage of molecules in sequence from one to another. E) All of the above 06.Which molecule is NOT part of the cell membranes? A) Lipids B) Proteins C) Carbonhydrates D) Nucleic Acid E) Phosphate group 07.What is the attachment site for RNA polymerase? A) Structural gene region B) Promote region C) Initiation region D) Operator region E) Regulator region 08.A human cell containing 22 autosomes and a Y chromosome is A) A somatic cell of a male B) A zygote C) A somatic cell of a female D) A sperm cell E) An ovum 09.Why are the lipid bilayers in cells called "semipermeable?" A) They are not really all that permeable. B) Their permeability is temperature dependent C) Their permeability changes with their molecular composition D) They are permeable to some substances but not others 10.Which of the following is NOT true of secreted proteins? A) They are synthesized in the rough ER B) They are transported through the endomembrane system in membrane-bound transport organelles C) They are transported from the golgi apparatus to the ER D) They contain a signal sequence that directs them into the ER 11.How do cancer cells differ from normal cells? A) Uncontrolled division and invasiveness B) Uncontrolled division only-many normal cell types are invasive C) Invasiveness only-many normal cell types row in an uncontrolled fashion D) Interphase and M phase 12.Which of the following statements about enhancers is correct? A) They contain a consensus sequence called a TATA box B) They are located only in 5' flanking regions C) They are located only in introns D) They are found in a variety of locations, and are active in any orientation. 13.Where and how are Okazaki fragments synthesized? A) At the leading strand, oriented in a 5' → 3' direction B) At the leading strand, oriented in a 3' → 5' direction C) At the lagging strand, oriented in a 3' → 5' direction D) At the lagging strand, oriented in a 5' → 3' direction 14.Which of the following is a frameshift mutation? A) THERATATETHECAT B) THETATATETHERAT C) THECATARETHECAT D) THECATATTETHECAT E) CATATETHECAT 15.Alleles are A) Different molecular forms of a gene B) Different molecular forms of a chromosome C) Self-fertilizing, true-breeding homozygotes 16.Which of the following events contributes to phenotypic variation in a population? A) Independent assortment B) Cross over C) Changes in chromosome structure and function D) All of the above 17.A gamate affected by nondisjuction would have A) A change from the normal chromose number B) One extra or one missing chromosome C) The potential fir a genetic disorder D) All of the above 18.Mitosis and cytoplasmic division function in A) Asexual reproduction of single-celled eukaryotes B) Growth, tissue repair and sometimes asexual reproduction in many multicelled eukaryotes C) Gamete formation in prokaryotes D) Both A) and B) 19.Sexual reproduction requires A) Meiosis B) Gamete formation C) Fertilization D) All of the above 20.One species' DNA differs from other in its A) Sugars B) Phosphate groups C) Base sequences D) Proteins Fill in the Blanks: (2% each) 01.The most widely accepted model for the membrane is the fluid-mosaic model 02.Chromosomes become visible in the prophase of cell cycle. 03.A true-breeding tall, purple-flowered pea plant (TTPP) is cross with a true-breeding dwarf, white flowered plant (ttpp). The true breeding parents are referred to as the P generation. Their hybride offspring are the F1 generation. The phenotypr of the F1 generation is tall, purple-flowered plant. 04.Meiosis reduces chromosome number from diploid to haploid. 05.List any two patters of inheritance not described by Mendel, but this laws of segregation and independent assortment can be extended to these more complex cases sex-linked inheritance, Blood-group ingeritance. 06.Osmosis is the passive transport of water. 07.In bacteria, regulated genes are often clustered into units called operon 08.semi-conservative model of DNA replication predicts that the two daughter DNA molecules each have one old strand from the parental DNA and one newly formed strand. 09.Homologous chromosomes move to opposite poles of a dividing cell during anaphase 10.The two principal organelles of the endomembrane system are rough ER and golgi apparatus 11.Two principles of genetic proposed by Model are Independent assortment and Laws of segregation -- 3 自然就是美 倾听‧自然之美 [ltlmouse] 14 NB_NATURE 悠在 Σ 自 然 美 >拥抱自然，舒适且美妙 [joannie] 16 JChang 自然 ◎J.小豪的心情笔记版 jman208 --

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