battledore (plural battledores) 1  A game played with a shuttlecock and rackets (properly battledore and shuttlecock); a forerunner of badminton. 2  The racket used in this game. ( 3 obsolete) A child's hornbook for learning the alphabet. ( obsolete) A bat or beetle used in washing clothes.
Watson is a U.S. molecular biologist, geneticist and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953 with Francis Crick. In 1998, the Modern Library placed The Double Helix at number 7 on its list of the 100 best nonfiction books of the 20th century.
Rosalind Franklin's work with X-ray diffraction showed that the DNA molecule is shaped like a(an) _____ and contains _____ strands. helix and two How did Francis Crick and James Watson try to understand the structure of DNA? they built three-dimensional models of the DNA molecule from cardboard and wire How did Watson and Crick describe the structure of DNA? DNA was a double helix, in which two strands were wound around each other Is the following sentence true or false? According to the principle of base pairing, hydrogen bonds could form only between adenine and cytosine.