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Complementary base pairing between initiator codon and anticodon of initiator tRNAD) peptide bonding between amino acidsA) binds to the stop codon in the A site in place of a tRNA33) A mutant bacterial cell has a defective aminoacyl-tRNA synthetase that attaches a lysine to tRNAs with the anticodon AAA instead of the normal phenylalanine. The consequence of this for the cell will be that _____.A) post-transcriptional splicingB) the number of polypeptides making up the functional proteinA) the same size as; smaller than49) How does termination of translation take place?A) DNA from a single gene is replicated and transferred to the cytoplasm, where it serves as a template for protein synthesis.C) RNA splicing can be catalyzed by tRNA.D) A primary transcript is often much shorter than the final RNA molecule that leaves the nucleus.A) Exons are cut out before mRNA leaves the nucleus.52) Which of the following types of mutation, resulting in an error in the mRNA just after the AUG start of translation, is likely to have the most serious effect on the polypeptide product?A) a unit of heredity that causes formation of a phenotypic characteristic26) In the structural organization of many eukaryotic genes, individual exons may be related to which of the following?50) Post-translational modifications of proteins may include the _____.B) a codon that specifies the same amino acid as the original codonB) has no effect on the amino acid sequence of the encoded proteinD) binding of the anticodon to the codon and the attachment of amino acids to tRNAs1.

What is the mechanism of information transfer in eukarotes?C) the various domains of the polypeptide productD) The cap of the mRNA will become covalently bound.42) The tRNA shown in the figure above has its end projecting beyond its end. This is best explained by the fact that _____.A particular triplet of bases in the template strand of DNA is 5' AGT 3'. These studies estimate that greater than 95% of human multi-exon genes express multiple splice isoforms.

For example, a number of alternatively spliced genes in immunity are known.

Which of the following would you expect her to find?D) alters the reading frame of the mRNACodons are part of the molecular structure of _____.54) Which of the following DNA mutations is most likely to damage the protein it specifies?46) Once a peptide has been formed between the amino acid attached to the tRNA in the P site and the amino acid associated with the tRNA in the A site, what occurs next?4. Alternativ… Select one: a. only occurs in prokaryotes b. can allow the production of proteins of different sizes and functions from a single mRNA c. increases the rate of transcription d. is a mechanism for increasing the rate of translation C) can allow the production of similar proteins from different RNAs. What would the anticodon be for a tRNA that transports phenylalanine to a ribosome?D) genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymesA) directs an mRNA molecule into the cisternal space of the ER


Base pairing of the mRNA codon following the initiator codon with its complementary tRNA43) What must occur before a newly made polypeptide is secreted from a cell?C) van der Waals interactions between hydrogen atomsB) RNA polymerase transcribes through the terminator sequence, causing the polymerase to separate from the DNA and release the transcript.35) Which of the following is the first event to take place in translation in eukaryotes?B) enzymes are made of DNA, and affected individuals lack DNA polymeraseD) RNA polymerase transcribes through a stop codon, causing the polymerase to stop advancing through the gene and release the mRNA.5.

B) can allow the production of proteins of different sizes and functions from a single mRNA. ... DNA replication and RNA transcription and translation. Alternative RNA splicing _____.
However, in eukaryotes, before the mRNA can be translated into proteins, non-coding portions of the sequence, called introns, must be removed and protein-coding parts, called exons, joined by RNA splicing to produce a mature mRNA.While these examples demonstrate the utility of alternative splicing in humans, the scope and exact role of this regulatory mechanism still remains to be investigated on a genome-wide scale. This information is transcribed from DNA into a messenger RNA (mRNA) template by a process called transcription. It can allow the production of proteins of different sizes and functions from a single mRNA.