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五、单词拼写: (共10小题;每小题0.5分,满分5分) 61. In order to c_____________ his son of the terrible disease, the old woman sold out all she had to collect money. 62. He is c_____________ and always comes up with new ideas. 63. He proves to be a true friend of mine. Whenever I am in trouble, he is always the person a_____________ to give you a hand. 64. This dictionary is just the one he r_____________ to me the other day and I think it is quite good for a middle school student. 65. You can come and have a chat with me whenever you feel it is c_____________ to you. 66. What is said in an advertisement should __________(迎合)to needs of the audience. 67. You said that your idea was the best among others, but it is important that you should try to find some __________(支撑的)reasons. 68 This new product was very well advertised on TV and its sale rose __________(平稳地)up till now. 69. He could have grown fatter but he is too __________(挑剔)about food. 70. The __________(平均)price of the micro-wave oven in the supermarket was no more than $ 70.
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【判断题】核酶是一种蛋白质分子,能剪切RNA小分子。
A.
正确
B.
错误
【判断题】各个血型在不同的人种之间出现的概率差异是很小的。()
A.
正确
B.
错误
【单选题】下面是3种限制性核酸内切酶对DNA分子的识别序列和剪切位点图(箭头表示切点,切出的断面为黏性末端)。相关叙述错误的是( ) 限制酶1:—↓GATC— 限制酶2:—CCGC↓GG— 限制酶3:—G↓GATCC— A.不同的限制酶有不同的识别序列和切割位点,体现了酶的专一性 B.限制酶2和3识别的序列都包含6个碱基对 C.限制酶1和酶3剪出的黏性末端相同 D.能够识别和切割RNA分子内一小段核苷酸序...
A.
B.
C.
D.
D
【单选题】具有疏散风热,清利头目,利咽透疹,舒肝解郁作用的药物是
A.
牛蒡子
B.
桑叶
C.
菊花
D.
薄荷
【单选题】在生物体内,控制tRNA合成的基因经过转录生成tRNA前体,tRNA前体经过核糖核酸酶P的剪切加工才能成为成熟的tRNA。据此分析,核糖核酸酶P
A.
能够催化tRNA基因的转录
B.
通过破坏氢键剪切前体RNA
C.
可能存在于细胞核或某些细胞器中
D.
可对双链DNA分子进行剪切和加工
【单选题】下列哪组器官或组织不属于内分泌系统:
A.
腺垂体和神经垂体
B.
肾上腺和胰岛
C.
松果体和黄体
D.
腮腺和汗腺
E.
甲状腺和甲状旁腺
【多选题】学龄儿童发展经历了哪几期
A.
儿童早期( 6 ~ 7 岁)
B.
儿童中期( 8 ~ 10 岁)
C.
儿童晚期( 11 ~ 12 岁)
D.
学龄期
E.
青春期
【简答题】请阐述RNA剪切中具有催化功能的RNA分子(核酶)的作用及应用的研究进展。
【单选题】29岁女性,婚后4年一直未孕,伴有痛经。应考虑
A.
多囊卵巢综合征
B.
子宫内膜异位症
C.
子宫内膜增殖症
D.
卵巢囊肿
E.
粘膜下子宫肌瘤
【单选题】下列哪组器官不属于内分泌系统
A.
腺垂体及神经垂体
B.
肾上腺及胰岛
C.
松果体和黄体
D.
胰腺和腮腺
E.
甲状腺和甲状旁腺
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