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17 Cards in this Set
- Front
- Back
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Dna |
Deoxirybonucleic acid |
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nucleic acids |
(molecules of life) store information that controls cellular activity |
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the two nucleic acids |
DNA(Deoxiribonucleic acid) RNA(ribonucleic acid) |
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Where is Dna found? |
nucleus |
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Chromatin |
chromosomal material made up of DNA,RNA and histone proteins (as found in non dividing cell) |
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extranuclear DNA |
small amounts of DNA found outside nucleus |
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Chromosomes (describe) |
long,thin,intertwined,threadlike structures made up of DNA strand wounded around histones |
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histones are (cells/proteins/emzymes) |
proteins |
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Dna is coiled ,why? |
to fit inside DNA |
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body cells also known as _______cells |
somatic |
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homologous |
same size and shape,same genes in same place |
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Genes |
sections of DNA that control hereditary characteristics |
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DNA structure (describe) |
Double helix ,3d structure |
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nucleotides are made up of these three |
●deoxiribose sugar ●phosphate ●nitrogenous base |
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the 4 nitrogenous bases |
●adenine ●thymine ●guanine ●cytosine |
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made up of 2 nitrogen rings |
purines |
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made up of one nitrogen ring,much smaller |
pyrimidines |
