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14 Cards in this Set
- Front
- Back
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Purpose of DNA |
Store and transmit genetic information from parent to offspring |
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Where does DNA exist |
in long fibres called chromatin |
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DNA in___ is wrapped tightly around ____ |
Chromatin;histones |
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DNA and ___ are further coiled to form ___ |
histone;nuclesomes |
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___ are wound together to form ___ |
nuclesomes chromosomes |
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Order of DNA packaging |
Chromatin Histones nucleosomes chromosomes |
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components of DNA |
A 5 carbon/pentose sugar called deoxyribose A PO4 group or phosphate A nitrogen containing base |
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4 nitregenous bases |
Purines=Adenine, Guanine pyrimidines= Thymine, cystoine |
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Which bonds always pair together |
A with T C with G |
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What provides the key to genetic diversity among living orginismes |
Different arrangements of nucleotides in the nucleus acid |
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DNA transcription |
DNA unzips itself and RNA nucleotides match up to the DNA strands |
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Both RNA and DNA are formed from___and are called |
nucleotides nucleic acids |
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Why is DNA "read" |
it is read in order to make protiens out of aminoacids |
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Semi conservative |
Every molecule of DNA is half old |
