Exam 17: Expression of Genes

The following question refers to this table of codons. What amino acid sequence will be generated based on the following mRNA codon sequence? 5′-AUG-UCU-UCG-UUA-UCC-UUG-3′

A single base substitution mutation is likely to have a less harmful effect when the base change results in which of the following?

Which of the following processes occurs as part of transcription?

Which of the following describes the most likely effect that a single base substitution in the middle of gene's sequence will have on the protein the gene encodes?

Which of the following statements is true about protein synthesis in prokaryotes?

A particular triplet of bases in the template strand of DNA is 5′-AGT-3′. What would be the corresponding codon for the mRNA that is transcribed?

Which answer correctly compares the primary transcript in a prokaryotic cell with the functional mRNA?

Which of the following processes will occur at the exposed 3′ end of a tRNA molecule?

Which of the following is most likely to occur if a researcher removes the 5′ cap and poly-A tail of an mRNA and inserts the mRNA molecule into a eukaryotic cell?

Which of the following best describes the redundancy in the genetic code?

While characterizing an error-prone organism, researchers found that each of the following types of mutations occurred immediately downstream of the translation start site. Which type of mutation is likely to have the most serious effect on the function of the polypeptide product?

Use the figure to answer the question. The figure shows a simple metabolic pathway. According to Beadle and Tatum's hypothesis, how many genes are necessary for this pathway?

In the structure of many eukaryotic genes, individual exons parallel which of the following?

Which of the following changes in an exon is most likely to result in a nonfunctional protein product?

In eukaryotes which of the following is the first step in translation?

Which of the following characteristics is directly related to the coding of a single amino acid during the process of translation?

Which of the following characteristics allows the CRISPR Cas9 enzyme to be an effective way to generate mutations that block the function of a specific protein (knock out)?

A particular triplet of bases in the coding sequence of DNA is 5'-AAA-3'. The anticodon on the tRNA that binds the mRNA codon is ________.

Which of the following molecules carries information from DNA and directs incorporation of amino acids at the ribosome?

Once researchers identified DNA as the molecule responsible for transmitting heritable traits, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. Which of the following statements correctly describes the mechanism of information transfer that accomplishes this task in eukaryotes?