Hello readers. Hope you all are having a good week so far.
So far the past days in science we’ve been starting with the genetic code and looking more into the basics of DNA, and building our own DNA. But today I will be talking about the structures of DNA. I will be doing the legend task, so I am going over whole consept of what it is, let’s start.
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DNA or known as deoxyribonucleic for it’s longer name. Is a molecule that contains the genetic code that is different for every individual (except indentical twins). The molecule consists of two long polynucleotide chains with ofour types of nucleotide subunits. These are known as a DNA chain, or a DNA strand. The DNA shape looks like a double helix = (Looks like a twisted ladder in all organisms)
The parts of nucleotide consists of a sugar molecule attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).
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KEY TERMS SUMMARY
| Key Term | Definition/explanation |
| DNA | The genetic information inside cells which helps make who you are. |
| Double helix | a term used for describing the physcial structure of DNA. |
| Nucleotide | Nucleotides form the basic structural unit of nucleic acids such as DNA. |
| Nucleotide bases | The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T). |
| Complementary base-pairing rule | adenine will always pair with its complement thymine and cytosine will always pair with its complement guanine. |