题目内容

A codon AUG is a:

A. Chain-initiating codon
B. Chain-terminating codon
C. Releasing factor for peptide chains
D. Recognition site on the tRNA

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In biosynthesis of proteins, the chain-terminating codons are:

A. UAA, UAC and UGA
B. UGG, UGU and AGU
C. AAU, AAG and GAU
D. GCG, GCA and GCU

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Formation of initiation complex in protein biosynthesis involves:

A. Dissociation of ribosome into its 40S and 60S subunits
B. Formation of 48S initiation complex
C. Formation of 80S initiation complex
D. All of the above

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In contrast to eukaryotic mRNA, prokaryotic mRNA:

A. has a poly A tail
B. has 7-methylguanosine at the 5′ end
C. can be polycistronic
D. none of the above

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20×9年6月30日,A公司的一项采用公允价值模式计量的投资性房地产租赁期届满,A公司将其收回后作为办公楼供本企业行政部门使用,该房地产20×8年12月31日的公允价值为2 000万元,20×9年6月30日的公允价值为1 900万元,20×9年上半年的租金价税合计为65.4万元(其中包含增值税税额为5.4万元)。转换日预计尚可使用年限10年,采用直线法计提折旧,无残值。不考虑其他因素,则该项房地产对A公司20×9年度损益的影响金额为( )万元。

A. -95
B. 65
C. 160
D. -135

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A codon AUG is a:

A. Chain-initiating codon B. Chain-terminating codon C. Releasing factor for peptide chains D. Recognition site on the tRNA

In biosynthesis of proteins, the chain-terminating codons are:

Formation of initiation complex in protein biosynthesis involves:

In contrast to eukaryotic mRNA, prokaryotic mRNA:

A. Chain-initiating codon
B. Chain-terminating codon
C. Releasing factor for peptide chains
D. Recognition site on the tRNA