The A form and Z form DNA are not the natural conformation of DNA.
举一反三
- The B form DNA is the only natural conformation of DNA.()
- The DNA structure exists in three forms: __________________. A: A form B: B form C: C form D: Z form
- ( ): The natural coiled conformation of two complementary, antiparallel DNA chains.
- 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
- In order to package the 3x109 nucleotides of DNA into the nucleus, the DNA is wound around histones. These are proteins that bind to the DNA. The interaction of histones and DNA involves: