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Biology dna and rna
| Question | Answer |
|---|---|
| Dna | Dioxyribonucleic acid |
| Rna | Ribonucleic acid |
| Nucleotide | A unit of rna and dna made up of a nitrogenous base ,phosphate and a sugar |
| Nucleic acid | A long chain of nucleotides that store and carry genetic information |
| Name four nitrogenous bases | Adinine Thymine Guanine Cytosine |
| State the DNA structure | Twisted ladder shape called double helix |
| What are the four dna nitrogenous bases | Adenine Cytosine Guanine Thymine |
| What are the four mRNA nitrogenous bases | Adenine Guanine Cytosine Uracil |
| What is a purine | A nitrogenous base that has a double ring structure |
| What is a pyrimidine | A nitrogenous base that has a single ring structure |
| State the differences between DNA and RNA | Double-stranded Single-stranded Nucleus, mitochondria, chloroplasts Nucleus, cytoplasm, ribosomes Deoxyribose Ribose Adenine, cytosine, guanine and thymine Adenine, cytosine, guanine and uracil Contains the genetic code of an organism Translates genetic |