In 1953, Watson and Crick found that:
A: Two polynucleotide chains form double helix structure of DNA by hydrogen bond linkage
B: DNA replication is semi-conservative and usually form heteroduplex DNA consisted of one parental chain and one daughter chain
C: Three continuous nucleic acids consist of a genetic code
D: Genetic material is usually DNA instead of RNA
A: Two polynucleotide chains form double helix structure of DNA by hydrogen bond linkage
B: DNA replication is semi-conservative and usually form heteroduplex DNA consisted of one parental chain and one daughter chain
C: Three continuous nucleic acids consist of a genetic code
D: Genetic material is usually DNA instead of RNA
举一反三
- Which is correct about DNA polymerase and RNA polymerase: A: RNA polymerases use nucleoside diphosphate instead of nucleoside triphosphate for synthesis of polynucleotide chains B: RNA polymerases need primer and add nucleotides in the 5 'end of the polynucleotide chain C: DNA polymerase can add nucleotides in both ends of the polynucleotide chain D: All of the RNA polymerases and DNA polymerases can only add nucleotides in the 3’ end of the polynucleotide chain
- Which<br/>is correct about DNA polymerase and RNA polymerase:() A: RNA<br/>polymerases use nucleoside diphosphate instead of nucleoside<br/>triphosphate for synthesis of polynucleotide chains B: RNA<br/>polymerases need primer and add nucleotides in the 5 'end of the<br/>polynucleotide chain C: DNA<br/>polymerase can add nucleotides in both ends of the polynucleotide<br/>chain D: All<br/>of the RNA polymerases and DNA polymerases can only add nucleotides<br/>in the 3’ end of the polynucleotide chain
- The correct statement about RNA polymerase and DNA polymerase is (1 point) A: Synthesis of polynucleotide chain using nucleoside diphosphate B: RNA polymerase requires primers and bases are added at the 5′-end of the extended polynucleotide chain C: DNA polymerase can only synthesize DNA using RNA as a template D: DNA polymerase can add nucleotides on both ends of a chain at the same time E: , DNA polymerase and RNA polymerase can catalyze the formation of 3',5'-phosphodiester bond
- The genetic material of a bacteria is located in the molecule A: RNA B: DNA C: protein D: lipid
- The DNA structure exists in three forms: __________________. A: A form B: B form C: C form D: Z form