What are wrong statements to describe cosmids?
A、It doesn’t contains a origin of replication
B、Less amount of phage DNA is deleted
C、It can be regarded as almost the same lambda vector
D、Cos packaging sites are presented on cosmids
A、It doesn’t contains a origin of replication
B、Less amount of phage DNA is deleted
C、It can be regarded as almost the same lambda vector
D、Cos packaging sites are presented on cosmids
A、A headache comes first. Then running tears, spinning house and nigrescent moment follow.
B、A toothache comes first. Then running tears, spinning house and nigrescent moment follow.
C、A backache comes first. Then running tears, spinning house and nigrescent moment follow.
D、A vomit comes first. Then running tears, spinning house and nigrescent moment follow.
A、System Reliability 系统可靠性
B、Confidentiality 保密性
C、Integrity 信息完整性
D、Identification 身份真实性
E、Non-Repudiation 不可抵赖性
It seems as if she has forgotten all about her ambition now____she made it hers to make a bit of progress every day when school started.
|
A、buys
B、is buying
C、buy
D、buying
A、Paranoid means feeling extremely nervous and worried because you believe that other people do not like you or are trying to harm you.
B、Narcissistic means having too much interest in and admiration for yourself
C、Obsessive compulsive disorder means a mental illness that causes a person to do something repeatedly for no reason.
D、None of the above statements is true.
A、Model verbs
B、Purpose Noun
C、Action Verb
D、Topic
A、It inserts the gene of interest into the bacterial chromosome.
B、It can be used as a vector to clone DNA.
C、It has cleavage sites for restriction nucleases.
D、It has a selectable property, such as antibiotic resistance.
A、It contains two or more restriction sites
B、Contains stuffer fragment
C、Carries smaller DNA than plasmid vectors
D、Recombinant selection by size
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