To select a different substance, click change in the bottom left corner of the video. Select the new substance, the video and make your observations! Substance Teste DNA Present? Amount of DNA DNA State ... S.. ... 1 Chocolate Present Some Small Shredded Pieces ... 2 Egg White Present ww. Lots long intact strand Gummy Candy Present Some Small Shredded Pieces Milk Present Some long intact strand Peas Present long intact strand some Strawberry Present Lots long intact strand Sugar Present Lots Small Shredded Pieces

Watson and Crick used scientific reasoning, their knowledge of biochemistry, and the research of other scientists to make one of the most important scientific claims of their time: DNA is a double helix with strands running in opposite directions. Between these strands, A pairs with T, and C pairs with G.

Which of the following is not true with respect to DNA? a. A nucleic acid that contains the genetic instructions used in the development and functioning of all modern living organisms. b. The helix geometry of DNA is of B-Form. DNA is completely protected by the body, i.e., the body destroys enzymes that cleave DNA. DNA can be damaged by exposure to Ultra-violet rays. c. The pairing of bases: A-T (Adenine-Thymine), G-C (Guanine-Cytosine) d. Consists of a deoxyribose sugar, a phosphate backbone, four bases: adenine, guanine, cytosine and uracil. e. None of the above

Explain why scientists preferred proteins as the source of genetic material over DNA.   A. DNA seemed too simple of a molecule compared to proteins   B. Proteins are made up of combinations of 20 different amino acids compared to DNA's 4 bases. The larger number seemed more likely to account for all the variety and diversity in organisms.   C. Scientists knew more about proteins than they did DNA.   D. All of the answers are correct explanations.

Before X-ray diffraction and the discovery of the structure of deoxyribonucleic acid (DNA) was identified, what historical knowledge and technology existed? Explain previous models, theories and laws and technologies of that time. (Long response)

Watson and Crick used scientific reasoning, their knowledge of biochemistry, and the research of other scientists to make one of the most important scientific claims of their time: DNA is a double helix with strands running in opposite directions. Between these strands, A pairs with T, and C pairs with G.

Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1-2 sentences. B I U !!!

Write a short essay explaining the evidence that DNA is the geneticmaterial. Be sure to use the results of the key experiments to help you withyour answer