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Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the sequence of bases on the complementary strand of this I-DNA strand? 3' TACCTTCAGCCT 5'. | ATGGAAGTCGGA
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| What is the sequence of bases on the strand of mRNA that is synthesized from the original strand of DNA? | AUGGAAGUCGGA
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| Name the organelle where-the synthesis of mRna takes place. | Nucleus
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| What is the anticodon on the TRNA for the first (1st) codon on mRNA transcribed from this segment of DNA, 3' TACCTTCAGCCT 5'? | TAC
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| During "normal conditions' proteins are essential for all the following except _____: | production of energy
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| Name the organelle where the codon and anticodon couplings take place. | Ribosome
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| ____ is coiled in a double helix. | DNA
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| ____ contains thymine. | DNA
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| ____ contains cytosine. | DNA and RNA
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| The final electron/ hydrogen acceptor in aerobic respiration is ____. | Oxygen
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| ____ contains uracil. | RNA
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| ____ brings amino acids to the ribosome. | TRNA
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| ____ is involved in transcription. | DNA polymerase
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| The genetic code depends on bases (nucleotides) in groups of ____. | Three
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| If mRNA is transcribed from a chain of DNA with the base sequence 3' CATTAG 5', the mRNA will have the sequence | GUAAUC
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| DNA, but not RNA, contains ____. | thymine
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| Transfer RNA functions in ____. | carrying amino acids to the correct site on the mRNA
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| How many amino acids would the polypeptide encoded by 3' ACCTCCCCGCAT 5' have? | Four
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| The second codon on the mRNA derived from the segment will be ____. 3' ACCTCCCCGCAT 5' | AGG
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| The anticodon of the tRNA for the third codon on the MRNA will be ____. 3' ACCTCCCCGCAT 5' | CCG
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| Through gene codes ultimately for all aspects of a protein's structure, it codes directly only for ____. | a primary structure
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| A certain gene codes for a polypeptide that is 126 amino acids long. The portion of the gene that codes for this polypeptide is probably how many nucleotides long? | 378
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| A nonsense mutation is one in which the substitution of one nucleotide for another results in a triplet ____. | that does not code for any amino acid
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| The nucleolus is a specialized region of a chromosome where the tRNA is synthesized. | False
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| In base substitution mutations only a single nucleotide of a gene is altered. | True
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| Some amino acids are specified by several "synonymous" codons. | True
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| How many codes are there from the universal genetic code? | 64
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| In the genetic code how many stop codes are there? | 3
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| The genetic code, DNA, carries codes for ____. | Proteins
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| In the last stage of aerobic respiration, ____ is the final acceptor of electrons that originally reside in glucose. | Oxygen
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| In alcoholic fermentation, ____ is the final acceptor of electrons stripped from glucose. | acetaldehyde
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| The germentation pathways produce no more ATP beyond the small yield from glycolysis, but the remaining reactions ____. | Regenerate
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| In certain organisms and under certain conditions, ____ can be used as ab energy alternative to glucose. | Fatty acids, amino acids, glycerol.
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| Electron transfer chains involve ____. | Enzymes and cofactors, and electron transfers.
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