'Dna copying' diaporamas de présentation

Overview of DNA Topology

Overview of DNA Topology. DNA Primary and Secondary Structure. Primary: Composed of repeated units: nucleotides (nt) nt = sugar U phosphate U base Sugar-phosphate backbone. Bases pair as GC or AT. Secondary: Double helix . DNA Tertiary Structure, I: Circular.

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How Cells Divide

How Cells Divide. http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookmito.html. Interphase. What the cell spends 90% of its time doing. Divided into G1 , S , and G2 stages This is where the cell goes about basic life functions of growth, DNA copying and regulation. G1.

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Deoxyribonucleic Acid

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DNA REPLICATION

DNA REPLICATION. DNA copying. Each cell division cell must copy its entire DNA So each daughter cell gets a complete copy Rate of synthesis Bacteria = 1000 bases per second Mammals = 100 bases per second Problem - with a single replication origin in DNA

283 views • 28 slides