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Chromo- What?! - PowerPoint PPT Presentation


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Chromo- What?!. DNA. Deoxyribonucleic acid. DNA. DNA. Replication. Copies of DNA. transcription. mRNA. translation. DNA. Replication happens in the NUCLEUS Transcription and translation happen in the CELL on a RIBOSOMES How many chromosomes do human beings have? 23 pairs (46).

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Presentation Transcript
slide2
DNA
  • Deoxyribonucleic acid
slide3
DNA
  • DNA

Replication

Copies of DNA

transcription

mRNA

translation

slide4
DNA
  • Replication happens in the NUCLEUS
  • Transcription and translation happen in the CELL on a RIBOSOMES
  • How many chromosomes do human beings have?
    • 23 pairs (46)
chromatin
Chromatin
  • Strings of DNA bound to proteins found in the nucleus
chromosomes
Chromosomes
  • When a cell divides, chromatin condenses to form chromosomes
chromatid
Chromatid
  • One-half of two identical copies of a replicated chromosome
centromere
Centromere
  • The region of the chromosomes where the two chromatids are joined together
slide10
Gene
  • a unit of heredity in a living organism
    • Subunits of DNA