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  • Khan Academy
    If you're seeing this message, it means we're having trouble loading external resources on our website If you're behind a web filter, please make sure that the domains * kastatic org and * kasandbox org are unblocked
  • Khan Academy
    A DNA nucleotide has three components: a 5-carbon sugar (deoxyribose), a phosphate group, and a nitrogenous base There are four types of nitrogenous bases found in DNA nucleotides: adenine , guanine , cytosine , or thymine
  • Overview of transcription - Khan Academy
    In the following articles, we'll take a more in-depth look at RNA polymerase, the stages of transcription, and the process of RNA modification in eukaryotes We'll also consider some important differences between bacterial and eukaryotic transcription
  • Khan Academy
    When grown on medium containing heavy 15 N ‍ , the bacteria took up the nitrogen and used it to synthesize new biological molecules, including DNA After many generations growing in the 15 N ‍ medium, the nitrogenous bases of the bacteria's DNA were all labeled with heavy 15 N ‍
  • Khan Academy
    Learn about the molecular structure of DNA and its role in biological macromolecules, providing a foundation for understanding genetics and cellular processes
  • Khan Academy
    Descubra a estrutura e função dos ácidos nucleicos, incluindo DNA e RNA, na biologia molecular
  • Khan Academy
    Si estás viendo este mensaje, significa que estamos teniendo problemas para cargar materiales externos en nuestro sitio Si estás detrás de un filtro de páginas web, por favor asegúrate de que los dominios * kastatic org y * kasandbox org estén desbloqueados
  • Khan Academy
    A nossa missão é proporcionar uma educação gratuita e de qualidade a qualquer pessoa, esteja onde estiver





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