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Chromatin Fibres and DNA Structure
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Chromatin Fibres and DNA Structure

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Questions and Answers

How many hydrogen bonds are formed between Adenine and Thymine?

Two

What are the four types of nitrogenous bases found in DNA?

Adenine (A), Guanine (G), Cytosine (C), Thymine (T)

What is the basic structure of a nucleotide?

Phosphate, sugar, and nitrogenous base

What is the role of histone proteins in DNA structure?

<p>Histones help in the coiling and packaging of DNA into nucleosomes.</p> Signup and view all the answers

How do Guanine and Cytosine pair in DNA?

<p>With three hydrogen bonds</p> Signup and view all the answers

Who first studied the shape of the DNA molecule?

<p>Rosalind Franklin</p> Signup and view all the answers

Who finally worked out the structure of the DNA molecule?

<p>Watson and Crick</p> Signup and view all the answers

What is the molecular structure of DNA described as?

<p>Macromolecule</p> Signup and view all the answers

What are the two main substances that form the chromatin fibre?

<p>DNA and Histones</p> Signup and view all the answers

What is the composition of a DNA molecule?

<p>Two complementary strands wound around each other in a double helix</p> Signup and view all the answers

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