DNA. The Molecule Of Life. DNA Structure. Nucleotides The Backbone Base Pairing The Double Helix Chromosomes Nucleosomes Genes. Nucleotide: the basic molecule of DNA. 3 parts: Nitrogenous base Sugar Phosphate. 5’. 3’. Nucleotides: 4 bases.
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The Molecule Of Life
The nucleotides in DNA use 4 different bases:
* Just think G-CAT, you know that rapper
Written as: 5’-ACTGTCAAGGTCGAT-3’
Hydrogen Bonds for spontaneously between specific nitrogenous bases
5’ - ATAGGGCCTAGAACCTGG - 3’
3’ - TATCCCGGATCTTGGACC - 5’
Strands are anti-parallel
3’ - TTAAGCTATGCT - 5’
What is the complementary DNA strand?
5’ - ATGC - 3’
Does your diagram have sugars, phosphates, and nitrogen bases?
Are the strands anti-parallel?
Where are covalent bonds between nucleotides?
Where are the hydrogen bonds?
The human genome contains 3 billion base pairs of DNA, about the same amount as frogs and sharks. But other genomes are much larger. A newt genome has about 15 billion base pairs of DNA, and a lily genome has almost 100 billion.
…and it would stretch to the moon!