X-ray diffraction photographs by Wilkins and Franklin suggested that Group of answer choices

DNA is composed of either purines or pyrimidines, but not both.

DNA and proteins have the same basic structure.

DNA and RNA are the same molecules.

DNA molecules are arranged as a tightly coiled helix.

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photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,