In eukaryotes, transcription occurs in the nucleoid. Chargaff\'s rules state tha
ID: 86110 • Letter: I
Question
In eukaryotes, transcription occurs in the nucleoid. Chargaff's rules state that the amount of DNA base pairs (G:C and A:T) varies from species to species. The only difference between DNA and RNA is that DNA contains deoxyribose instead of ribose. Gene expression can be regulated by post - transcriptional RNA editing/processing. Gene expression can be regulated at the level of protein synthesis. Three types of RNA (mRNA, rRNA, and tRNA) are required for translation. Complimentary base - pairing is important for DNA replication, transcription and translation. A point mutation is more likely to be damaging than a frameshift mutation. The primary structure of a protein is encoded by the base sequence of DNA. The DNA sequence 3' - TAC GAT - 5' would be transcribed to RNA sequence: 5' ATG CTA - 3' The DNA code is considered unambiguous because a given codon only specifies one amino acidExplanation / Answer
1. This statement is false. The nucleiod is an irregularly shaped structure which is present in prokaryotes. In eukaryotes, the transcription occurs in the nucleus.
2. This statement is true. According to chargaff's law, the amount of A, T, G, and C varies from species to species.
3. This statement is false. There are two basic differences between RNA and DNA. One is the presence of ribose sugar in RNA instead of deoxyribose which is present in DNA, and second is presence of uracil in place of thymine.