In the Watson-Crick model for the DNA double helix, which of the following is true?Group of answer choicesThe DNA strands are anti-parallelThe strands are held together by peptide bondsThe strands are held together by ionic bondsThe DNA strands are parallel

9. Watson and Crick used scientific reasoning, their knowledge of biochemistry, and the research of otherscientists to make one of the most important scientific claims of their time: DNA is a double helix withstrands running in opposite directions. Between these strands, A pairs with T, and C pairs with G.Complete the table on the following page to explain the evidence that Watson and Crick used to support thisclaim:DNA is a double helix with strands running in opposite directions. Between these strands, A pairs withT, and C pairs with G.Film ActivityStudent HandoutThe Double HelixDNA & RNA Updated February 2020www.BioInteractive.org Page 4 of 4Evidence: (List three pieces of evidence for the claim. Name the scientists who were responsible foreach piece.)Reasoning: (In full sentences, explain how each piece of evidence supports the claim.)10. Even before the structure of DNA was known, studies indicated that the genetic material must have thefollowing properties:• be able to store information• be consistently replicated between generations• be able to allow for changes, and thus evolution, to occurExplain how the structure of DNA gives it these three properties. Write one or two sentences per property

DNA double helix does not have which of the following?Group of answer choicesmajor and minor groovescomplementary base pairinguracilantiparallel configurationNext

The strands of the DNA double helix are held together by _______________________________________.

What is the structure of the DNA double helix

Watson and Crick proposed the model for the 3D structure of DNA.  Within this model: Group of answer choicesthe distance between the two strands of DNA is 4 nm.the two strands of DNA are held together by covalent bonds.the two strands of DNA run in the same 5’ → 3’ direction.ten bases are found in each turn of the helix.