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Questions and Answers
What is the primary difference in structure between DNA and RNA?
What is the primary difference in structure between DNA and RNA?
- DNA contains deoxyribose sugar, while RNA contains ribose sugar (correct)
- DNA is found in the nucleus, while RNA is found in the cytoplasm
- DNA carries genetic code, while RNA does not
- DNA is single-stranded, while RNA is double-stranded
Where is DNA primarily located within the cell?
Where is DNA primarily located within the cell?
- Cytoplasm
- Mitochondria
- Endoplasmic reticulum
- Nucleus (correct)
Which statement best describes the function of RNA in relation to DNA?
Which statement best describes the function of RNA in relation to DNA?
- RNA carries the genetic code like DNA
- RNA is found in chromosomes like DNA
- RNA is double-stranded like DNA
- RNA reads the DNA code and can transport genetic information (correct)
What is the structure of DNA that allows it to be described as double-stranded?
What is the structure of DNA that allows it to be described as double-stranded?
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What is the main job of RNA?
What is the main job of RNA?
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Which nitrogen base pairs with Thymine in DNA?
Which nitrogen base pairs with Thymine in DNA?
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What is the key difference in the sugar component between DNA and RNA nucleotides?
What is the key difference in the sugar component between DNA and RNA nucleotides?
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Which of the following statements is true about both DNA and RNA?
Which of the following statements is true about both DNA and RNA?
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Study Notes
Structure of DNA and RNA
- The primary difference in structure between DNA and RNA is the sugar component, with DNA containing deoxyribose and RNA containing ribose.
- DNA is primarily located in the nucleus of eukaryotic cells, and in the cytoplasm of prokaryotic cells.
Function of RNA
- RNA plays a crucial role in transcribing and translating genetic information from DNA into proteins.
- The main job of RNA is to act as a messenger, carrying genetic information from DNA to the ribosomes, where proteins are synthesized.
Structure of DNA
- DNA is double-stranded, with two complementary strands twisted together in a helical structure, held together by hydrogen bonds between nitrogen bases.
- The structure of DNA allows it to be replicated and transcribed efficiently.
Nitrogen Base Pairing
- Adenine (A) pairs with Thymine (T) in DNA, and Adenine (A) pairs with Uracil (U) in RNA.
- Thymine pairs with Adenine in DNA.
Similarities between DNA and RNA
- Both DNA and RNA are nucleic acids, composed of nucleotides, with sugar, phosphate, and nitrogen base components.
- Both DNA and RNA contain the nitrogen bases Adenine (A) and Guanine (G).
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