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Name: The ribosome is needed for translation of mRNA(a) because it has the e
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Description: The ribosome is needed for translation of mRNA(a) because it has the enzyme for adding amino acids to the 5’ end of a tRNA (b) because the ribosomal RNA contains the codon which determines the sequence of amino acids in a protein (c) because it p

Science

Biology

The ribosome is needed for translation of mRNA

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter13: Gene Expression

Section13.4: Translation

Problem 3C: A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon...

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The ribosome is needed for translation of mRNA (a) because it has the enzyme that forms peptide bonds between amino acids (b) because the ribosomal RNA contains the codon which determine the sequence of amino acids in a protein (c) because it contains the enzyme that links the amino acids and tRNA (d) because it has enzyme that removes introns from mRNA (e) all of the above
Amino acids are translated from mRNA codons and each codon is made up of three nucleotide bases. How might an extra single base INSERTION into the second codon of a coding sequence of a gene affect the amino acid sequence of the protein encoded by the gene? (Hint: You may want to write out a made-up example of an insertion like the one described above) The entire amino acid sequence would shift and be changed. O A single amino acid would change only. O The mutation may have no effect on the amino acid sequence. O A single extra amino acid would be present in the protein. O All of the above are possible outcomes.
which statement about genetic code is not true? A) mRNA is read 3 bases at a time, which are called codons. B) There is one initiator codon that codes for an amino acid. C) Each amino acid is coded for by only one codon. D) There are 3 termination codons that do not code for amino acids. E) Each codon is specific for only one amino acid. An anion has an equilibrium potential of -40 mV. What direction are the chemical and electrical forces acting on the anion at the resting membrane potential (-70 mV)? A) Both the chemical and electrical forces are directed out of the cell. B) The chemical force is directed out of the cell and the electrical force is directed into the cell. C) The chemical force is directed into the cell and the electrical force is directed out of the cell. D) There is insufficient information to answer this question. E) Both the chemical and electrical forces are directed into the cell.
Which of the following is true for the tRNA of eukaryote cells? tRNA is a) made of DNA and protein, b) the active site in carbohydrate synthesis, c) is a subunit that forms mRNA from the codon of DNA. d) found inside the endoplasmic reticulum, e) has the specific sequence of bases (anti codon) that interacts with the base sequence (codon) of mRNA.
Which of the following best describes mRNA?Group of answer choices a) Complexes with ribosomal proteins to form ribosomes b) Transports amino acids to ribosomes during translation c) Provides the instructions for the amino acid sequence of a polypeptide d) Used for eukaryotic RNA processing
1) The nucleolus is a cytoplasmic organelle involved in the synthesis of ribosomes (true or false ) 2)DNA is often referred to as supercoiled because it is most commonly found in cells as two strands of inter-wounded DNA (true or false ) 3) translation is a process of synthesizing proteins based on base sequences of mRNA molecule (true or false )
For each of the following, identify the type of RNA involved (mRNA, rRNA, or tRNA). a. Transports the correct amino acid to the ribosome, using the information encoded in the mRNA. b. Is a major component of ribosomes. c. Speciﬁes the order of amino acids in a protein, using a series of three-base codons, where different amino acids are speciﬁed by particular codons. d. Contains a three-base anticodon that pairs with a complementary codon revealed in the mRNA. e. Assists in making the bonds that link amino acids together to make a protein.
The aminoacyl-tRNA synthetase enzymes are responsible for: O A. matching each tRNA with the appropriate mRNA codon. O B. catalyzing the enzymatic step of peptide bond formation during translation. O C. synthesizing tRNA molecules in the nucleus from tRNA genes. O D. adding amino acids to appropriate tRNAS (charging the tRNA). O E. regulating the process of amino acid synthesis.
When the ribosome "reads" the codon UAG, UGA or UAA... A) the polypeptide is released from ribosome but ribosome continues reading the mRNA B) the proper tRNA enters the ribosome C) translation begins D) polypeptide is released from the ribosome and translation ends
Part A) In your own words describe what happens in transcription and translation Include which types of nucleic acids are involved in each step Describe the function of each type of nucleic acid in the process of making proteins Part B) Also, explain how two nucleic acids "recognize" or "talk" to each other
Like mRNA, tRNA has a ribose sugar, U instead of T, and is single stranded. Unlike mRNA, which remains a long single strand of nucleotides, tRNA folds so that some areas pair up. The resulting structure has an anticodon on one end and a site for an amino acid to attach on the other end. There is base complementarity (A pairs with U and G pairs with C) between an mRNA codon and tRNA anticodon.If the amino acid lysine attaches to a tRNA, which of the following anticodons could be at the opposite end of the tRNA molecule? a. UUU and UUC b. AAA and AAG c. AGA and AGU d. UCU and UCA
A polysome is actively involved in translation. The ribosomes are attached to which of the following? (A) Single-stranded DNA (B) Double-stranded DNA (C) mRNA (D) rRNA (E) tRNA