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Cards In This Set
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The genetic code is essentially the same for all organisms. From this, one can logically assume which of the following?
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A gene from an organism can theoretically be expressed by any other organism
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The nitrogenous base adenine is found in all members of which group?
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ATP, RNA, and DNA
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Garrod hypothesized that "inborn errors of metabolism" such as alkaptonuria occur because
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Genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymes.
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Which of the following nucleotide triplets best represents a codon?
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A triplet in the same reading frame as an upstream AUG
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A simple metabolic pathway is shown below. A mutation results in a defective enzyme A. Which of the following would be a consequence of that mutation?
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An accumulation of A and no production of B and C
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If A, B, and C are all required for growth, a strain that is mutant for the gene-encoding enzyme A would be able to grow on which of the following media?
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Minimal medium supplemented with nutrient B only
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If A, B, and C are all required for growth, a strain mutant for the gene-encoding enzyme B would be capable of growing on which of the following media?
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Minimal medium supplemented with C only
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What amino acid sequence will be generated, based on the following mRNA codon sequence?
5' AUG-UCU-UCG-UUA-UCC-UUG 3' |
Met-ser-ser-leu-ser-leu
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Which of the following provides some evidence that RNA probably evolved before DNA?
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DNA polymerase uses primer, usually made of RNA.
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