请在 下方输入 要搜索的题目：
推荐参考答案 (
由 搜题小帮手 官方老师解答 )
答案：
以下文字与答案无关
提示：有些试题内容 显示不完整,文字错误 或者 答案显示错误等问题，这是由于我们在扫描录入过程中 机器识别错误导致,人工逐条矫正总有遗漏，所以恳请 广大网友理解。
相关试题
- 1.下列各常用载体的装载量排列顺序，正确的是（）选项： A:Cosmid >λ-DNA > Plasmid B:λ -DNA > Cosmid > Plasmid C:Plasmid >λ -DNA > Cosmid D:Cosmid > Plasmid >λ-DNA
- 2.下列各常用载体的装载量排列顺序，正确的是（） 选项： A、Cosmid>λ-DNA>Plasmid B、λ-DNA>Cosmid>Plasmid C、Plasmid>λ-DNA>Cosmid D、Cosmid>Plasmid>λ-DNA E、λ-DNA>Plasmid>Cosmid
- 3.下列各常用载体的装载量排列顺序，正确的是（） 选项： A、Cosmid >λ-DNA > Plasmid B、λ -DNA > Cosmid > Plasmid C、 Plasmid >λ -DNA > Cosmid D、Cosmid > Plasmid >λ-DNA
- 4.下列各常用载体的装载量排列顺序，正确的是()。 选项：A.Cosmid l-DNA Plasmid B.l-DNA Cosmid Plasmid C.Plasmid l-DNA Cosmid D.Cosmid Plasmid l-DNA
- 5.下列各常用载体的装载量排列顺序，正确的是（） 选项： A、ACosmid>l-DNA>Plasmid B、Bl-DNA>Cosmid>Plasmid C、CPlasmid>l-DNA>Cosmid D、DCosmid>Plasmid>l-DNA
- 6. Plasmid is bacterial 选项： A: metachromatic granule B: nucleic DNA C: extrachromosomal DNA D: ribosome E: mesosome
- 7. Isolation of genomic DNA follows the same principles as that of obtaining plasmid from E. coli. Which of the following is not included in it?选项： A:Dissolving plasmid in water; B:Cell lysis; C:Removal of proteins; D:Removal of chromosomal DNA
- 8. (单选题)Plasmid is bacterial 选项： A: mesosome B: extrachromosomal DNA C: ribosome D: metachromatic granule E: nucleic DNA
- 9. (单选题)Plasmid is bacterial 选项： A: ribosome B: extrachromosomal DNA C: nucleic DNA D: metachromatic granule E: mesosome
- 10. (单选题, )Plasmid is bacterial• 选项： A: nucleic DNA• B: ribosome• C: metachromatic granule• D: mesosome• E: extrachromosomal DNA
- 11.(单选题, 0.4 分) Plasmid is bacterial 选项： A: nucleic DNA B: ribosome C: metachromatic granule D: mesosome E: extrachromosomal DNA
- 12.Which enzyme can connect DNA fragement into plasmid vector resulting as a recombinant? 选项： A:DNA enzyme B:Restriction enzyme C:Ligase D:Taq polymerase
- 13.The two main types of DNA libraries are…(more than one correct answer):选项： A:Plasmid; B:Genomic; C:cDNA; D:PCR
- 14.（） can be used in both DNA recombination technology and cell fusion technology. （ ）选项： A:virus B:cellulase C:polyethylene glycol D:plasmid
- 15.When Agrobacterium tumefaciens infects plant cells, the bacterial DNA that enters the plant cell and integrates into the plant cell genome is the Ti plasmid and carries part of the bacterial chromosomal DNA.选项： A:正确; B:错误
- 16.（） can be used in both DNA recombination technology and cell fusion technology. （ ） 选项： A、polyethylene glycol B、virus C、plasmid D、cellulase
- 17.Which of the following is TRUE about DNA sequencing methods?选项： A:Taq polymerase is quite heat sensitive; B:Purified fragments of DNA cut from plasmid or amplified by polymerase chain reaction (PCR); C:Clones of DNA fragments are denatured to single strands, and one of the strands is hybridized to an oligonucleotide primer; D:New strands of DNA are synthesized from the end of the primer
- 18.Which of the following is TRUE about DNA sequencing methods?选项： A:Taq polymerase is quite heat sensitive; B:Purified fragments of DNA cut from plasmid or amplified by polymerase chain reaction (PCR); C:Clones of DNA fragments are denatured to single strands, and one of the strands is hybridized to an oligonucleotide primer; D:New strands of DNA are synthesized from the end of the primer
- 19.Agarose gel electrophoresis separates the chromosomal DNA from the plasmid according to the band pattern displayed by ( ) and electrophoresis. 选项： A:Quantity; B:Relative molecular mass; C:Gel dosage; D:Linear structure
- 20.柯斯质粒(cosmid)是一种 ( )载体 选项： A:容量最大的一种载体 B:不能在受体细胞内复制,但可以表达的载体 C:由λ -DNA 的 cos 区与质粒重组而成的载体 D:是一种单链DNA环状载体
- 21.Cosmid vector
