作者arsenate (雲深不知處)
看板TransBioChem
標題[生物] 試題分享VI
時間Fri Dec 24 11:08:19 2010
Merry Christmas ~
這幾題算是近年來非常熱門的考題
也屬於分子生物學一定要懂的觀念，
以下英文單字請務必要記(尤其考中興&台聯)
1. The physiological role of restriction endonucleases is to
(A) allow the in vitro construction of recombinant DNA molecules
(B) methylate host DNA
(C) remove RNA primer during DNA synthesis
(D) allow mapping of gene location
(E) cleave foreign DNA molecules that enter the cell
2. Which of the following is LEAST likely to cause a proto-oncogene to
become an oncogene?
(A) A gene is incorporated into a retroviral genome.
(B) A gene is expressed at an inappropriate time.
(C) A gene is moved close to an enhancer, causing excess product to be made.
(D) A gene is truncated, yielding a protein with modified activity.
(E) A gene is moved into centromeric heterochromatin, silencing its
transcription.
3. Which of the following is true concerning animal retroviruses?
(A) They must replicate during the S phase of the cell cycle.
(B) They require an RNA-dependent DNA polymerase.
(C) They are nonenveloped viruses.
(D) The virions have double-stranded RNA genomes.
(E) Replication of their genome occurs entirely within the host nucleus.
4. In the DNA sequence 5' CGA TCG GCT 3' , which of the following is
considered a transition-type mutation?
(A) 5 CGA CCG GCT 3
(B) 5 CGA TGG CT 3
(C) 5 CGA TCG CCT 3
(D) 5 CGA TCG GCA 3
(E) 5 CGA UCG GCU 3
(這一題是測驗對於突變的相關概念，所以要先知道突變有哪幾種？)
5. In adult mammals, the primary site for the final stage of differentiation
of T lymphocytes is the
(A) spleen
(B) bone marrow
(C) bursa of Fabricius
(D) thymus
(E) liver
(這題是免疫學的初階，如果翻成中文，很明顯是高中生也會寫，
所以關鍵就在於要知道各個器官的英文)
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◆ From: 115.43.232.100
1F：→ x94jo3:CAADD 12/27 23:24
2F：→ x94jo3:我不確定 XDDD (心虛 12/27 23:24
3F：→ arsenate:第五題答對了~ 12/27 23:30
4F：→ x94jo3:所以我前面都錯了..... 12/27 23:33
5F：→ x94jo3:我去找答案= =+++++ (賭氣XD 12/27 23:33
6F：→ arsenate:第四題提示： Ａ是嘧啶變嘧啶 D是嘧啶變嘌呤 12/27 23:34
7F：→ arsenate:這時候就要靜下來想想 transition型的突變有什麼特徵？ 12/27 23:35