分子生物学试卷.docVIP

分子生物学试卷（作业）——樊景新 0309241109 03生物科学 The molecular biology examination Name:Fanjingxin Number:0309241109 Profession:03 biology sciences PartⅠ the word analyze(10*2=20) 1.Allosteric control:Point an of protein order up of reaction can affect another to order the live ability. 2.Amplification:Point to produce a chromosome sequence to copy additionally, with or chromosome is the chromosome outside DNA form cluster exist. 3.DNA cloning:DNA cloning is a technique forreproducing DNA fragments. 4.Gene library:A collection of different DNA sequence from an organism, each of which has been cloned into a vector for ease of purification, storage and analysis. 5.Subcloning:Subcloning is a basic molecular biology procedure used to move inserts from one vector to another. 6.PCR:PCR is to used to amplify a sequence of DNA using a pair of oligo- nucleotide primers each complementary to one end of the DNA target sequence. 7.Anticoding strand:It be the template leading in the DNA double chains with the chain that RNA synthesize that it repair with each other. 8.Cloning vector:Take the quality grain of insert the outside source part or bite the germ body, thus produce more materials or protein outcome. 9.Excision?repair：This system moves to open to include to hurt to form couples the sequence of DNA of the basic radical with mistake, passing to synthesize in a chain with reserve the chain that chain with each other repair to substitute them. 10. Stop codons：Cause the protein synthesizes to terminate, include UAA、UAGUGA. Part Ⅱ Choose the best answer(10*2=20) 1、Which of the following is not Biological functions of proteins：（ C ） A、Nutrition B、Immunity C、isolation D、Transport and storage 2、If a sample has an A260/Α280 of 0.5, then the sample is: ( A ) A、protein B、RNA C、ssDNA D、dsDNA 3、Both leading and lagging strand primers are elongated by ：( D ) A、DNA polymeraseⅠ B、DN