P. 258 Rrna Analysis
Reviewing Ideas and Using Concepts: P.258-259
Reviewing Ideas: 1. Describe the function of tRNA, mRNA, and rRNA.
The function of tRNA is to delivers amino acid to ribosomes during translation in the order specified by the mRNA. The function of mRNA is to specify which amino acids must be placed during protein synthesis or translation. The function of rRNA is just to become part of the ribosomes. 2. In what situation does RNA play a role similar to enzymes?
RNA is like an enzyme when it is a catalyst and helps assist in the reduction of the activation energy which relates to tRNA when it attaches its amino acid to the rightful place. This helps construe a faster translation. 3. Are all genes expressed at all times? Explain your …show more content…
Gene expression begins with RNA synthesis. The transcription enzyme RNA polymerase joins RNA nucleotides according to the base sequence in DNA. Prokaryotes have one type of RNA polymerase. Transcription has four major processes Template recognition, Initiation, Elongation, and Termination. First RNA polymerase binds to duplex DNA. Then, DNA is unwound at promoter and then chain 2-9 bases are synthesized and released. Next, RNA polymerase moves, RNA is synthesized by base pairing with one strand of DNA and once RNA polymerase reaches end of gene it is released at the terminator and DNA duplex …show more content…
Give the sequence of an mRNA molecule that is the complement of the following coded sequence of DNA: ATTACGCGGTCAGTA.
UAAUGCGCCAGUCAU.
3. What could you measure with radioactive phosphorus? Explain your answer.
With radioactive phosphorous, you’d be able to measure the rate of transcription due to the fact that RNA contains phosphorus but proteins do not. The amount of phosphorous will determine the rate. 4. Would the proteins manufactured by a polyribosome be different or the same? Explain your answer.
They would be not all be the same due to the fact that each of the proteins has a variety of functions and with different amino acid structure. 5. How is the need for gene regulation in multi-cellular organisms different than in single-celled organisms? 6. What would happen to translation if a ribosome skipped one or more codons? Explain your answer.
If in translation, the ribosome skips one or more codons, you’ll get a frame shift in which a different amino acid sequence will
Reviewing Ideas: 1. Describe the function of tRNA, mRNA, and rRNA.
The function of tRNA is to delivers amino acid to ribosomes during translation in the order specified by the mRNA. The function of mRNA is to specify which amino acids must be placed during protein synthesis or translation. The function of rRNA is just to become part of the ribosomes. 2. In what situation does RNA play a role similar to enzymes?
RNA is like an enzyme when it is a catalyst and helps assist in the reduction of the activation energy which relates to tRNA when it attaches its amino acid to the rightful place. This helps construe a faster translation. 3. Are all genes expressed at all times? Explain your …show more content…
Gene expression begins with RNA synthesis. The transcription enzyme RNA polymerase joins RNA nucleotides according to the base sequence in DNA. Prokaryotes have one type of RNA polymerase. Transcription has four major processes Template recognition, Initiation, Elongation, and Termination. First RNA polymerase binds to duplex DNA. Then, DNA is unwound at promoter and then chain 2-9 bases are synthesized and released. Next, RNA polymerase moves, RNA is synthesized by base pairing with one strand of DNA and once RNA polymerase reaches end of gene it is released at the terminator and DNA duplex …show more content…
Give the sequence of an mRNA molecule that is the complement of the following coded sequence of DNA: ATTACGCGGTCAGTA.
UAAUGCGCCAGUCAU.
3. What could you measure with radioactive phosphorus? Explain your answer.
With radioactive phosphorous, you’d be able to measure the rate of transcription due to the fact that RNA contains phosphorus but proteins do not. The amount of phosphorous will determine the rate. 4. Would the proteins manufactured by a polyribosome be different or the same? Explain your answer.
They would be not all be the same due to the fact that each of the proteins has a variety of functions and with different amino acid structure. 5. How is the need for gene regulation in multi-cellular organisms different than in single-celled organisms? 6. What would happen to translation if a ribosome skipped one or more codons? Explain your answer.
If in translation, the ribosome skips one or more codons, you’ll get a frame shift in which a different amino acid sequence will