試題詳解

複選題
2.Regarding to the structure of DNA, which statements is/are CORRECT?
(A) In the Watson-Crick model, two polynucleotide chains running in opposite directions, called antiparallel.
(B) The two strands of DNA are wound around each other to form a regular A-form double helical structure.
(C) Supercoiling can occur only if the DNA has no free ends.
(D) Eukaryotic chromatin consists of nucleosome. A nucleosome contains DNA associated with a histone octamer.
(E) Nucleosomal DNA is divided into core DNA and linker DNA. The core DNA has length approximately 200 bp.