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DNA Packaging in Human Cells

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Questions and Answers

What is the purpose of coiling and supercoiling in DNA?

To eventually form chromosomes

Why does DNA need to be condensed inside the nucleus of a human cell?

To fit inside the nucleus due to its length

What are the components of chromatin?

DNA and Histones

List the components of a nucleotide.

Pentose sugar, Phosphate group, Nitrogenous bases Signup and view all the answers

Provide two kinds of nucleic acids.

DNA and RNA Signup and view all the answers

What are the two purines nitrogenous bases found in DNA?

Adenine (A) and Guanine (G) Signup and view all the answers

What is the structure formed by a core of 8 histones in DNA?

Nucleosome Signup and view all the answers

What is the point of attachment between two sister chromatids in a chromosome called?

Centromere Signup and view all the answers

Which nitrogenous base is unique to RNA and not found in DNA?

Uracil (U) Signup and view all the answers

Who proposed the 'double helical model' of DNA?

Watson and Crick Signup and view all the answers

What serves to attach a chromosome to spindle fibers during cell division?