Concept explainers
Interpretation:
A role of intron and exon term has to be defined.
Concept Introduction:
RNA synthesis: The process of RNA synthesis is Transcription. A small section of DNA unwinds, only one of the two strands act as template and the other strand as informational strand. The complementary bases are attached one by one by the action of RNA polymerase at template strand on moving down. The newly generated RNA is the exact copy of the informational strand, with the exception that a U replaces each T in the template DNA. The RNA synthesised carries genetic information and directs protein synthesis.
hnRNA : The mRNA from the nucleus contains both Introns and Exons is named as hnRNA (heterogeneous nuclear RNA).
Want to see the full answer?
Check out a sample textbook solutionChapter 26 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
- What is a codon, how many RNA nucleotides are in a codon, How many of these code for amino acids, and what is the other three codes for?arrow_forwardIf one codon codes for two nucleotide than how many possible codons are there?arrow_forwardHow many codons are needed to specify one amino acid?arrow_forward
- What is the interactome?arrow_forwardA certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).arrow_forwardHow does the presence of introns aid exon shuffling?arrow_forward
- How many codons code for isoleucine (Ile)? How many codons code for tryptophan (Trp)?arrow_forwardHere is our DNA sequence: T-A-C-A-T-G-T-T-T-A-G-G-T-C-C-A-C-C-C-G-T-G-G-G-A-C-T Write the RNA sequence below as codons (separated by hyphens). What is your amino acid sequence? The codon table with amino acid sequence is section 6.7 of your textbook. (Separate the amino acids by hyphens.) Again, be sure to note the start and stop codons. What is the name of the process of creating an amino acid sequence from RNA? What would happen if, in the middle of your gene sequence, the DNA was transcribed into the letters UAA on the mRNA strand? What effect might this have on the gene/trait? Using the DNA strand (in the box below), provide the complement which would be made through DNA replication. T-A-C-A-T-G-T-T-T-A-G-G-T-C-C-A-C-C-C-G-T-G-G-G-A-C-T Where does each of the following processes occur within the cell? Transcription: Translation: DNA Replication:arrow_forwardName some subtopics for introns and exons.arrow_forward
- How many codons are possible for an RNA trinucleotide having an adenine base, a cytosine base, and guanine base?arrow_forwardIs it reasonable that codons for the same amino acid have one or two nucleotides in common? Why or why not?arrow_forwardWhat role do ribosomes play in carrying out genetic instructions?arrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning