The Nucleus

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The Nucleus

• Structure Function

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The Nucleus

• is the computer or control center of the cell.
• contains the genetic material of life DNA
  (Deoxyribonucleic acid).
• a DNA molecule consists of nucleotides connected
  together.

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Nucleotide

• A nucleotide consists of a
• 1. phosphate group
• 2. sugar
• 3. nitrogen base 4 types
• adenine (A)
• thymine (T)
• cytosine (C)
• guanine (G)
• DNA consists of two nucleotide chains connected
• Together.
• A T always pair up , while C G do the
  same.

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Nucleotide Structure
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Drawing A DNA Molecule
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• Long chains of DNA form Chromatin.
• Short sections of DNA along a piece of chromatin
  form Genes.
• A gene will either produce or influence a
  specific trait in the offspring.

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• Nucleolus / Nucleoli (plural) a dark spherical
  structure that is the site of ribosome formation.
• Ribosomes and other important chemical messages
  leave the nucleus through the Nuclear Pores. The
  membrane around the nucleus is called the Nuclear
  Membrane or Envelope.