24. What major types of RNA are produced in cells? How do they differ in a. proc
ID: 193570 • Letter: 2
Question
24. What major types of RNA are produced in cells? How do they differ in a. processing, b. final location in the cell c. function, and d. whether or not they are a final or intermediary gene product 25. How does the sequence of nucleotides in mRNA code for the sequence of amino acids in a protein? 26. Why is the RNA code for the amino acids called a 'triplet code"? 27. What is the meaning of the word 'codon'? How many different codons are there? What type of molecule contains codons? 28. Distinguish between tRNA, RNA, and mRNA in terms of their roles in translation. 29. What is the meaning of the word anticodon'? What type of molecule contains anticodons? How do codons and anticodons interact during translation? 30. A cell cannot use the code in text fig 10.8A. How does a cell read' and translate the mRNA codons? Which molecule would do the 'reading', and how? 31. How would a human, who can read fig 10.8A, translate the mRNA codons? 32. What are the benefits of the redundancy in the genetic code? 33. Describe the role of complimentary base pairing in protein synthesis 34. Describe the Central Dogma of Biology and its relevance in understanding human diseases and nc 6. disorders. 35. Answer the 5 Ws (who, what, where, when, why) of replication, transcription, and translation. Page 2 of 2 940 words English (US) 128%Explanation / Answer
24.
Type of RNA:
1. mRNA: Splicing produces mature transcript. It codes for proteins. Mature transcript is the intermediate product in gene expression. It is located in the cytosol.
2. tRNA: tRNA is the final product of tRNA genes. It does not code for proteins. It helps in translation.
3. rRNA: It is the final product of rRNA genes. It does not code for proteins. It is a component of ribosomes. It is also localized in the cytosol.
25.
Messenger RNA contains triplet codons. Each codon encodes a specific amino acid.
AUG = Start codon = Met
GGG = Glycine
AAA = Lysine
UGA = Stop
26.
Genetic code is redundant, universal, commaless and non-overlapping.
Genetic code is triplet. Three nucleotide bases in mRNA code for a single amino acid.
27.
Codon is a signal on the mRNA that specifies what amino acid has to be incorporated into the growing polypeptide chain.
There are 64 different codons that specify 20 different amino acids.
mRNA contains codons.
28.
mRNA: Contains codons
rRNA: Component of ribosome and mediates translation process
tRNA: Carrier of charged amino acids to the translation site
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