Which of the following statements about Eukaryotic RNA is true?
  • reverse transcriptase.
  • Exons are spliced together
  • DNA uses the nitrogenous base uracil.
  • RNA uses the sugar dextrose.
Which of the following statements regarding DNA is false?
  • DNA uses the nitrogenous base uracil.
  • Exons are spliced together
  • RNA uses the sugar dextrose.
  • initiation of a new RNA molecule.
Why does a DNA strand grow only in the 5' to 3' direction?
  • The ribosomes of prokaryotes and eukaryotes are exactly the same in structure and fund
  • The amount of adenine is equal to the amount of guanine is equal to the amount of cytosine.
  • The sequence of nucleotides along the length of a single DNA strand is restricted by the base pairing rules.
  • because DNA polymerases can only add nucleotides to the 3' end of the growing molecule.
Which of the following statements regarding the structure of DNA is false?
  • The ribosomes of prokaryotes and eukaryotes are exactly the same in structure and fund
  • The amount of adenine is equal to the amount of guanine is equal to the amount of cytosine.
  • The conversion of genetic information from the language of nucleic acids to the language of proteins.
  • The sequence of nucleotides along the length of a single DNA strand is restricted by the base pairing rules.
Which of the following statements characterizes the lytic cycle of a viral infection?
  • The cycle typically leads to the lysis of the host cell.
  • Heavy use of antibiotics in medicine and in agriculture.
  • Transcription occurs in the cytoplasm of eukaryotic cells.
  • The sequence of nucleotides along the length of a single DNA strand is restricted by the base pairing rules.
How would the shape of a DNA molecule change if adenine paired with guanine and cytosine paired with thymine?
  • The cycle typically leads to the lysis of the host cell.
  • The ribosomes of prokaryotes and eukaryotes are exactly the same in structure and fund
  • Heavy use of antibiotics in medicine and in agriculture.
  • The DNA molecule would have irregular widths along its length.
Which of the following human activities has contributed to an increase in the number if bacteria having R plasmids?
  • The amount of adenine is equal to the amount of guanine is equal to the amount of cytosine.
  • Heavy use of antibiotics in medicine and in agriculture.
  • Transcription occurs in the cytoplasm of eukaryotic cells.
  • The cycle typically leads to the lysis of the host cell.
Which of the following enzymes catalyzes the production of a strand of RNA from DNA?
  • RNA polymerase
  • RNA uses the sugar dextrose.
  • reverse transcriptase.
  • DNA polymerase
What kind of virus is HIV?
  • a retrovirus
  • Nucleotides
  • White blood cells.
  • DNA polymerase
When one DNA molecule is copied to make two DNA molecules, the new DNA contains
  • 50% of the parent DNA
  • DNA polymerase
  • reverse transcriptase.
  • RNA polymerase
The monomers of DNA and RNA are
  • a retrovirus
  • White blood cells.
  • Nucleotides
  • In the cytoplasm.
Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component?
  • DNA --> RNA --> protein
  • RNA uses the sugar dextrose.
  • DNA uses the nitrogenous base uracil.
  • reverse transcriptase.
Which of the following statements regarding the flow of genetic information is false?
  • Heavy use of antibiotics in medicine and in agriculture.
  • initiation of a new RNA molecule.
  • Transcription occurs in the cytoplasm of eukaryotic cells.
  • The cycle typically leads to the lysis of the host cell.
HIV does the greatest damage to
  • In the cytoplasm.
  • reverse transcriptase.
  • White blood cells.
  • Nucleotides
When a T2 bacteriophage infects an Escherichia coli cell, which part of the phage enters the bacterial cytoplasm?
  • In the cytoplasm.
  • 50% of the parent DNA
  • DNA template
  • Only the DNA
Keep
  • Four amino acids.
  • a retrovirus
  • Nucleotides
  • Studying
Which of the following enzymes catalyzes the elongation of a new DNA strand?
  • reverse transcriptase.
  • RNA polymerase
  • DNA --> RNA --> protein
  • DNA polymerase
Multiple origins of replication on the DNA molecules of eukaryotic cells serve to
  • The cycle typically leads to the lysis of the host cell.
  • 50% of the parent DNA
  • DNA uses the nitrogenous base uracil.
  • shorten the time necessary for DNA replication
Considering only the steps that take place during translations, which of the following is not needed in order for translation to occur?
  • DNA template
  • Only the DNA
  • DNA polymerase
  • RNA polymerase
One type of virus that infects bacteria is called an?
  • DNA polymerase
  • Phage
  • a retrovirus
  • 50% of the parent DNA
A eukaryotic cell has a nuclear envelope that allows tRNA molecules, but not mRNA molecules, to leave the nucleus. Which of the following processes will not be able to take place in this cell?
  • Exons are spliced together
  • DNA --> RNA --> protein
  • tRNAs binding to codons.
  • Four amino acids.
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