施工企业对下列()情况的固定资产可计提折旧。

A．5'-UGUACGAUACCUUAC-3'

B．5'-CAUUCCAUAGCAUGU-3'

C．5'-GUAAGGUAUCGUACA-3'

D．5'-ACAUGCUAUGGAAUG-3'

A、the leading strand

B、the lagging strand

C、equally active on both strands

D、neither , only DNA polymerase III is involved in synthesis

A、DNA polymerase

B、Reverse transcriptase

C、RNAse

D、RNA polymerase

A、A、There is a shortage of dNTPs for lagging strand synthesis.

B、Okazaki fragments are riddled with mistakes; proofreading enzymes chop up the nucleotide into short fragments.

C、Lagging strand DNA polymerase can only handle a few nucleotides at a time.

D、DNA is synthesized 5' to 3'. Replication can only proceed from the unwound portion of DNA outward.

A．changes both the parental strand and the newly synthesized strand

B．corrects the mismatch by changing the newly synthesized unmethylated strand

C．corrects the mismatch by changing the parental strand

D．corrects the strand which is methylated

Given the waveform of the signalshown below, which one of the representation of isWRONG ()

A、

B、

C、

D、

The zero-pole plot of a C-T LTI system is shown below, and. Then the unit impulse response of the system is

A、

B、

C、

D、

A、covalent bonds

B、weak hydrogen bonds

C、ionic bonds

D、phosphate groups

E、none of the above