举一反三
- If the DNA strand shown below is used as a template for RNA polymerase, what would be the sequence of the resultant mRNA following transcription? 5'-CATTCCATAGCATGT-3'
- If the DNA strand shown below is used as a template for RNA polymerase, what would be the sequence of the resultant mRNA following transcription? 5'-CATTCCATAGCATGT-3' A: 5'-UGUACGAUACCUUAC-3' B: 5'-CAUUCCAUAGCAUGU-3' C: 5'-GUAAGGUAUCGUACA-3' D: 5'-ACAUGCUAUGGAAUG-3'
- The template strand of DNA is 5’-ATTCAG-3 ’ , its transcript is
- The function of DNA polymerase I is to replace RNA primer with DNA. On which strand would you expect DNA polymerase I to be more active? A: the leading strand B: the lagging strand C: equally active on both strands D: neither , only DNA polymerase III is involved in synthesis
- DNA replication, one of the new strands will grow continuously, it is<br/>called () A: Continuous strand B: Faster strand C: Leading strand D: Lagging strand
内容
- 0
If this is the base sequence of a strand of DNA(A T G C C), what would be the base sequence of the complimentary DNA strand?? U A C G G|A T G C C|A U G C C|T A C G G
- 1
The 5'→3' exonuclease activity of intact DNA polymerase I can replace a segment of DNA (or RNA) paired to the template strand, in a process known as ____________________.
- 2
The DNA polymerases require a primer. A primer is a strand segment (complementary to the template) with a free 3′-hydroxyl group to which a nucleotide can be added; the free 3′ end of the primer is called the ______________.
- 3
Which one of the following phrases is used when we draw conclusions?
- 4
Which of the following statement about DNA polymerase of eukaryotes is NOT true: A: DNA pol α/primase are involved in initial synthesis of the nascent strand. B: DNA polδ and ε are mainly responsible for the synthesis of DNA chains. C: Replacement of DNA polymerase could happen during DNA synthesis process. D: There are five kinds of DNA pol：α、β、γ、δ and ε in eukaryotes