Answer:
1)What does DNA look like? why was it hard to work with?
ans. The two strands of DNA form a 3-D structure called a double helix. When illustrated, DNA looks like a spiral ladder in which the base pairs are the rungs, and the sugar-phosphate backbones are the legs. Even with sophisticated lab equipment, DNA isn't easy to study. That's because a strand of the stuff is just 2 nanometers wide, which is smaller than a wavelength of light.
2)Who were the two people working on the crystallography of DNA?
ans. The 3-dimensional double helix structure of DNA, correctly elucidated by James Watson and Francis Crick.
3) Explain two Scientists' first DNA model?
ans. Chargaff's realization that A = T and C = G, combined with some crucially important X-ray crystallography work by English researchers Rosalind Franklin and Maurice Wilkins, contributed to Watson and Crick's derivation of the three-dimensional, double-helical model for the structure of DNA.
4) What was another researchers reaction? And consequences?
ans. Changes to short stretches of nucleotides are called gene-level mutations, because these mutations affect the specific genes that provide instructions for various functional molecules, including proteins. Changes in these molecules can have an impact on any number of an organism's physical characteristics.
5) Whats going to happen if you are afraid to make mistakes? Do you think this applies to all aspects of life? Explain why.
ans. Fear and anxiety are influenced by many genes; there is no such thing as a simple "fear" gene that is inherited from one generation to the next. The genes controlling neurotransmitters and their receptors are all present in several different forms in the general population.
Request:
All the answers are given. Can you please mark me as the brainliest.
