Answer: The most familiar use of x-rays is checking for fractures (broken bones), but x-rays are also used in other ways. For example, chest x-rays can spot pneumonia. Mammograms use x-rays to look for breast cancer. When you have an x-ray, you may wear a lead apron to protect certain parts of your body
Eukaryotic cells have a nucleus and Prokaryotic cells do not.
Answer:
A, B, C, D
Explanation:
A is true. DNA is found in the cytoplasm of the cell in eukaryotes. (I'm 95% sure.)
B is true. RNA is a nucleic acid, and it helps build proteins.
C is true. DNA is a nucleic acid that builds the genetic code/information.
D is true. The structure of many things, including proteins, is determined by DNA. (Don't get this confused with RNA. RNA helps <em>build</em> proteins, but DNA determines the structure.)
E is false. A chromosome is made up of DNA, not RNA.
(I'm about 95% sure my answers are correct, but please don't be dependent on these answers.)
Answer:
28. Transverse (all electromagnetic waves are transverse)
29. White light.
<u>X-Ray crystallography</u> was the technique that helped Watson and crick in developing their model for the structure of DNA.
A crystal's crystalline structure causes a beam of incident X-rays to diffract into a variety of distinct directions, which is how X-ray crystallography, an experimental science, determines a crystal's atomic and molecular structure.
Famous researchers Watson and Crick made history by figuring out the structure of DNA. They discovered that DNA is composed of two strands wound around one another to form a double-helical structure using X-ray crystallography. It was developed by Rosalind Franklin using an approach called X-ray crystallography and showed the DNA molecule's helical structure. The genetic code for all living things is encoded in two chains of nucleotide pairs that make up DNA, as Watson and Crick discovered.
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