In bacteria, single polycistronic mRNA encodes for: a single mRNA which is split into multiple mRNAs before translation. multiple enzymes of the particular pathway. a single peptide with multiple catabolic sites. a single enzyme although there are many in the metabolic pathway.
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In bacteria, single polycistronic mRNA encodes for:
-
a single mRNA which is split into multiple mRNAs before translation.
-
multiple enzymes of the particular pathway.
-
a single peptide with multiple catabolic sites.
-
a single enzyme although there are many in the
metabolic pathway.
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Solved in 2 steps
- Which of the following statements regarding the genetic code is false? The genetic code is nearly universal. Each codon codes for only one amino acid. Three different codons function to terminate translation. There is a single initiation codon. Each amino acid is encoded by a single codon.In eukaryotes, which of the following statements is correct with regard to introns and exons? Mature mRNA contains a mix of introns and exons Introns in DNA are removed by spliceosomes Failure to remove introns can lead to production of faulty protein Exons are repeating sequences typically found at the end of a gene Introns are transcribed from promoter sequenceWhich of the following, if any, cannot be genetically encoded in DNA? a)mRNA b)tRNA c)rRNA (RNA part of the ribosome) d)RNA parts of the spliceosome
- Which of the following acts as the “transcript” during protein synthesis? DNA mRNA tRNA rRNAA __________ molecule is characterized by having a peptide-binding site, a modified 5’ guanine, and an anticodon. _____________ molecules are encoded by multiple gene copies in both prokaryotes and eukaryotes, and they catalyze critical reactions functions during translation. Group of answer choices mRNA; rRNA rNA; aminoacyl tRNA synthase tRNA; rRNA rRNA; precursor RNA mRNA; tRNAWhich of the following steps in protein synthesis does not require a direct supply of energy? a. proofreading step by certain aminoacyl-tRNA synthetases b. translocation of mRNA in a ribosome c. linkage of an amino acid to its cognate tRNA d. alignment of a tRNA anticodon with an mRNA codon
- This molecule: -is involved in translation -may bind to the “start” codon on mRNA -has an amino acid attachment site at one end -has an anticodon at the other end ______Introns are known to contain termination codons (UAA, UGA, or UAG), yet these codons do not interrupt the coding of a particular protein. Why? More than one termination codon is needed to stop translation. Exons are spliced out of mRNA before translation. They are not in the correct reading frame. Introns are removed from mRNA before translation.Occurring in the nucleus ribosome mitochondrion , translation transcription is the process of making an RNA copy from a DNA template. The molecule then enters the cytoplasm. The process in which the mRNA sequence is converted into a sequence of amino acids is called translation transcription . In the cytoplasm, the nucleus ribosome mitochondrion reads the amino acid sequence and assembles the protein.
- An anti-codon is the sequence of the nitrogenous bases on the? complementary strand of DNA which codes for one amino acid complementary strand mRNA which codes for one amino acid tRNA molecule where the amino acid is attached tRNA molecule which recognises the appropriate sequence of bases on the mRNA mRNA molecule which instructs the ribosomes to initiate protein synthesisWhich of the following types of mutation that changes the mRNA sequence after the codon that initiates translation is likely to have the most detrimental effect on the polypeptide product? Group of answer choices a substitution of the first nucleotide of a GGG codon a substitution of the third nucleotide in an ACC codon an insertion of a codon a deletion of two nucleotides a deletion of a codonIf the following were part of a DNA chain, what mRNA bases would pair with it to transcribe the DNA code onto mRNA? GGA TCG CCT TAG AAT