mastering in micro ch 8 pt 1 – Flashcards
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What are the products of semiconservative replication for a double-stranded DNA molecule?
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Two double-stranded DNA molecules, each consisting of one parental strand and one daughter strand.
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Why is DNA replication essential for a cell?
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An organism must copy its DNA to pass genetic information to its offspring.
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What is the function of the parental DNA in replication?
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It serves as the template for DNA replication.
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Transcription produces which of the following?
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mRNA, tRNA, and rRNA are all produced by transcription.
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According to the animation, which of the following makes mRNA from the information stored in a DNA template?
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rna polymerase
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Ribosomes contain which of the following?
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rRNA
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Which of the following is involved in bringing amino acids to the ribosomes?
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tRNA
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Which of the following can be translated into protein?
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mRNA
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What results from the process of translation?
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polypeptide
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How is bacterial translation different from eukaryotic translation?
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Bacteria can begin translation before transcription has terminated.
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According to the animation, ribosomes move along the mRNA in which direction?
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5' to 3'
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As shown in the animation, the start codon also codes for which amino acid?
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Methionine
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How many codons code for the amino acid arginine?
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6
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GAU codes for
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aspartic acid.
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Which of the following amino acids is coded by only one codon?
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Trp
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What would happen if the DNA sequence that coded for Cys was mutated in the third position from a U to an A?
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A stop codon would be introduced prematurely
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During the initiation step of translation, the fMet charged tRNA assembles in which site of the ribosome?
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p site
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How does the ribosome know if the entering charged tRNA is correct?
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The anticodon on the tRNA base pairs to the codon on the mRNA.
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What kind of bond is formed when two amino acids join together?
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peptide bond
