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17 Cards in this Set
- Front
- Back
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Chargaff"s rules state that the amount of A,T,G and C in DNA
a. varies from species to species, and the amount of A=T and G=C b. varies from species to specides, and the amound of A=G and T=C c. is the same form species to species, and the amount of A=T and G=C d. is the same from species to species, and the amount of A=G and T=C |
A - varies from species to species, and the amount of A-T and G=C
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DNA replication is said to be semiconservative because
a. each new DNA molecule contains one new strand and one old one b. every other new DNA molecule contains two old strands c. each new DNA strand contains two new strands d. every other new DNA molecule contains one new strand and one old one |
A- each new DNA molecule contains one new strand and one old one
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Which of the following is not a feature of eukaryotic DNA replication?
a. repliction bubbles spread in tow directions b. a new strand is synthesized using an old one as a template c. complementary base pairing determines which nucleotides should be added to the new strand d. each chromosome has one origin of replication |
D- each chromosome has one origin of replication
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contains an anticodon
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transfer RNA
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carries amino acids to the ribosome
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transfer RNA
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carries genetic information from DNA to ribosomes
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messenger RNA
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produced in the nucleolus
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ribosomal RNA
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which of the following statements about the genetic code is not true?
a. the genetic code is almost universal b. the genetic code is a doublet code c. mutlitple codons may encode the same amino acid d. some special codons mean "stop" |
B- the genetic code is a doublet code
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Transcription produces _____, while translation produces _____.
a. DNA, RNA b. RNA, polypeptides c. polypeptides, RNA d. RNA, DNA |
B- RNA, polypeptides
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the application of computer techniques to analyze the genome is called
a. proteomics b. genomics c. bioinformatics d. genetic code |
C- bioinformatics
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point mutation that changes one codon of a gene
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sometimes harmful
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frameshift mutation that changes all following codons
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usually harmful
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point mutation that changes a codon into a "stop" codon
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usually harmful
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movement of a transposon into the middle of a gene
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usually harmful
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point mutation that does not change the amino acid specified by the codon
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not harmful
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which of the following is not useful in creating recombinant DNA?
a. restriction endonuclease b. DNA ligase c. RNA polymerase d. plasmid |
C- RNA polymerase
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Genome comparisons may yield information about which of the following?
a. evolutionary relationships between organisms b. changes in genes over evolutionary history c. links between genes and disease d. all of these are correct |
D- all of these are correct
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