Question

In: Biology

The protein synthesis in pro- and eukaryotic species resembles each other to a large degree. In...

The protein synthesis in pro- and eukaryotic species resembles each other to a large degree. In both pro and eukaryotic cells, mRNA is used as template for incorporation of the correct amino acids in the growing polypeptide chain.
a) List the main differences between mRNA from prokaryotic and eukaryotic species
b) In contrast to prokaryotic cells, eukaryotic cells has spliceosomes, what function do they have? and list the main steps in the reaction
c) How many different codons code for amino acids?
d) Explain why the number of different tRNA molecules is lower, than the number of different codons?

Solutions

Expert Solution

(a) EukaryoticmRNA is monocistronic in nature that is the mRNA of the eukaryotes is produced by the transcription of the single gene whereas in the prokaryote the mRNA is produced by the transcription of the operons. The transcription in the prokaryote occurs in the cytoplasm as there is no nucleus in the case of prokaryotes.The transcription in case of eukaryotes occurs in the separate compartment known as nucleus. Transcription is the the process by which DNA is converted into RNA. mRNA is also formed through the process of transcription.The prokaryotic DNA contains ribosomes binding site which is known as shine Oalgana sequence. 5' capping in the mRNA occurs in case of the eukaryotic mRNA. The lifespan of prokaryotic mRNA is very short as compared to the eukaryotic mRNA which has a stable lifespan. There is no post transcriptional changes in the case of prokaryotic mRNA. The eukaryotic mRNA undergoes capping tailing and splicing. capping includes the addition of 5- methyl guanosine triphosphate at the 5' end. Tailing includes addition of adenosine group in a template independent manner at 3' end. There are sequence - Introns and exons. Exons are the translatory sequence where introns are non- translatory sequences. Introns are removed and exons are joined to form mRNA.This process is known as splicing.

Thanking you

Have a beautiful day ?✨

Please , Hit a Thumbs up ??


Related Solutions

1. Describe how the 43 S preinitiation complex forms for Eukaryotic protein synthesis. 2. How might...
1. Describe how the 43 S preinitiation complex forms for Eukaryotic protein synthesis. 2. How might the fact that mature mRNA having 3' poly A tails be used to isolate mature mRNA form eukaryotic genes. 3. The base analog 5-bromouracil is a thymine analog that causes transition mutations because it can easily interconvert between the keto and enol forms. Draw the base pair for 5-bromouracil and adenosine (keto) and 5-bromouracil and Guanosine (enol).
Determine the order in which each process occurs in protein synthesis.
Determine the order in which each process occurs in protein synthesis.  Rank the items from the process that occurs first to the process that occurs last. To rank items as equivalent, overlap them.
The oxidative phosphorylation system for ATP synthesis consists of many large protein complexes and their functions...
The oxidative phosphorylation system for ATP synthesis consists of many large protein complexes and their functions are described below in a box. Which is incorrect? Select one: a. Only Complex I, III, IV are H+ pumps. b. CoQ and CytC are the electron carriers between the complexes. c. Fo-F1-ATPase is where ATP is synthesized. d. Complex III has the Q cycle. e. None of these
For each term or phrase/description...match with either Prokaryote or Prokaryotic structure/protein, Eukaryotic pathogen (worm), Eukaryotic pathogen...
For each term or phrase/description...match with either Prokaryote or Prokaryotic structure/protein, Eukaryotic pathogen (worm), Eukaryotic pathogen (Protozoan), or host cell or host signal/proteins...think carefully about your answers!       -       A.       B.       C.       D.       E.    Ciliated eptheilium       -       A.       B.       C.       D.       E.    M cells       -       A.       B.      ...
Determine whether each of the events involved in protein synthesis occurs in initiation, elongation, or termination.
Determine whether each of the events involved in protein synthesis occurs in initiation, elongation, or termination. Initiation Elongation Termination Answer Bank The small and large ribosomal subunits combine to form an initiation complex. The tRNA, mRNA, and new protein are released. The small ribosomal subunit attaches to an mRNA molecule. The ribosome moves down the mRNA strand to the next codon. An initial tRNA molecule pairs with the AUG codon of the mRNA molecule. Amino acids are transferred from tRNA molecules to the growing peptide chain. The ribosome reaches...
List two classes/types of antibiotic for each of the following targets: Cell wall Synthesis and Protein...
List two classes/types of antibiotic for each of the following targets: Cell wall Synthesis and Protein Synthesis. Describe how this class of antibiotics specifically work and why this makes them selectively toxic.
1) Describe the function of each antibiotic. Does the antibiotic inhibit cell wall synthesis, inhibit protein...
1) Describe the function of each antibiotic. Does the antibiotic inhibit cell wall synthesis, inhibit protein synthesis, or something else? A) Penicillin B)Tetracycline C) Macrolide D) Cephalosporin E) Metronidazole F) Vancomycin G) Trimethoprim H)Chloramphenicol I)Rifampin
2 identical magnets are arranged with like poles facing each other on a frictionless 30 degree...
2 identical magnets are arranged with like poles facing each other on a frictionless 30 degree slope. The magnet on the lower position is held in place and can't move. the magnet in the higher position on the track is held in place by the balance of the upslope force due to the magnetic repolsion between the magnets and the downslope force due to the weight of the magnet. The mass of the magnets is 50 grams each. The distance...
Please give the genus and species of each answer. 11. The colonies are typically large, gray-white...
Please give the genus and species of each answer. 11. The colonies are typically large, gray-white and opaque on blood agar. Most strains recovered from clinical isolates are nonpigmented; colonies with a deep red pigmentation may be encountered. On MacConkey agar they appear nonpigmented after 24 hours but become lactose positive. The bacterial cells are gram-negative straight rods. The biochemical reactions are indole negative, methyl red negative, VP positive, motile, citrate positive, urease negative, and hydrogen sulfide negative ___________________________________________________________________________________ 12....
Please give the genus and species for each question. 1. The colonies are typically large, gray-white...
Please give the genus and species for each question. 1. The colonies are typically large, gray-white opaque colonies on blood agar. Some strains are beta hemolytic. On MacConkey agar the colonies appear red from fermentation of lactose in the medium. The bacterial cells are gram-negative straight rods. The biochemical reactions are indole positive, methyl red positive, voges proskauer negative and citrate negative. The microbe is (genus and species): 16. A 38-year-old man in Alabama developed bilateral paresthesia and pain in...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT