What clues helped scientists determine the structure of DNA? Make a three-column table to organize the information about Chargaff, Franklin, and Watson and Crick. Describe Chargaff... What clues helped scientists determine the structure of DNA? Make a three-column table to organize the information about Chargaff, Franklin, and Watson and Crick. Describe Chargaff's rule in your own words. What relationship does it reveal about nucleotides? How did Chargaff's findings contribute to the study of DNA? Who was Rosalind Franklin, and what technique did she use to study DNA? What does the X-shaped pattern in Franklin’s photo 51 suggest about the structure of DNA? How does the arrangement of the nitrogenous bases in DNA contribute to its overall structure? How did Franklin’s work pave the way for further understanding of DNA's molecular structure? Which of the 3 parts of the DNA is called the Genetic code? What type of biomolecule is DNA? The building block (monomer) of DNA is DNA stands for What are the three parts of a nucleotide? The bases of DNA code for The four bases found in DNA are What is the base pairing rule: A = _, C = _ . How many sides are found in the DNA? The bases are held together by bonds. The DNA is also twisted forming a shape. Write the correct letter before each of the following key vocabulary words. What do the letters DNA stand for? DNA is a polymer. What are the monomers (repeating subunits) of DNA called? The “backbone” of the DNA molecule is made up of two components, what are these? There are four different variations of these monomers which have different bases. The DNA of a grasshopper is 20% guanine nucleotides. How much of the DNA is cytosine? The DNA of an octopus was determined to contain 33% adenine. How much guanine should the DNA have? Read more

Chargaff's rules showed base pairing (A=T, C=G), forming the double helix model. Franklin's X-ray crystallography revealed DNA's helical structure. Watson and Crick developed the double helix model using these insights. DNA stands for deoxyribonucleic acid, with nucleotides as its monomers.

To determine the structure of DNA, scientists used clues from Chargaff, Franklin, and Watson & Crick.

• Chargaff: Established Chargaff's rules stating that in any DNA sample, the amount of adenine (A) equals thymine (T) and the amount of cytosine (C) equals guanine (G). His work laid the foundation for the double helix model, as it suggested specific base pair matching.

• Franklin: Used X-ray crystallography to photograph DNA, leading to images like Photo 51, which revealed the helical structure and suggested a consistent diameter, which was crucial for identifying the double helix.

• Watson and Crick: Developed the DNA double helix model, integrating Chargaff's rules and insights from Franklin's images, illustrating that DNA is a double-stranded molecule with a helical structure.

Chargaff's rule reveals that DNA's nucleotide bases pair specifically: A with T and C with G. This pairing is crucial for DNA replication and encoding genetic information.

Rosalind Franklin was a physicist and chemist notable for her X-ray diffraction work, which provided critical evidence for DNA's structure. The X-shaped pattern in her Photo 51 indicated the double helix.

The arrangement of nitrogenous bases in DNA creates the ladder-like interior of the double helix, with specific base pairing keeping the strands held together by hydrogen bonds.

Franklin’s work was foundational for revealing DNA's regular helix shape and spacing, leading to the eventual explanation of genetic coding.

The genetic code is primarily contained within the sequence of nucleotide bases in DNA.

DNA is a nucleic acid biomolecule made of nucleotide monomers. DNA stands for deoxyribonucleic acid. A nucleotide consists of a sugar, a phosphate group, and a nitrogenous base.

The bases in DNA—adenine, thymine, cytosine, and guanine—encode genetic information using the base pairing rule: A = T, C = G.

DNA is composed of two strands. The bases are held together by hydrogen bonds, forming a twisted double helix.

The backbone of DNA consists of sugar and phosphate groups, with the four bases being adenine, thymine, cytosine, and guanine. DNA's monomers, nucleotides, differ by their bases, producing genetic variation.

If the DNA of a grasshopper is 20% guanine, it is also 20% cytosine, totaling 40% for both, leaving 60% for adenine and thymine, which are 30% each due to Chargaff's rules. For an octopus with 33% adenine, the DNA has 33% thymine, leaving 34% for cytosine and guanine (17% each).