Viruses consist of either DNA or RNA wrapped inside a protein coat. Are viruses considered alive?   A. Yes, because they contain DNA.   B. Yes, because they contain DNA and proteins.   C. No, because they lack carbohydrates and lipids.   D. No, because some viruses use RNA as the main genetic molecule.

Use the information to answer the following question. Two students were debating whether viruses are living or nonliving. Student A: Viruses are living because they contain DNA or RNA and reproduce. Student B: Viruses are nonliving because they do not grow and do not use energy. Which student's claim is correct and why? O A. Student B, because viruses do not use or make energy. Even though they contain DNA and RNA, many other non-living things also contain DNA and RNA. O B. Student B, because viruses do not grow and do not use energy. Although they have DNA and RNA, they are only able to reproduce with a host cell. O C. Student A, because viruses are able to reproduce and continue to spread their disease to other hosts. As the virus becomes more dangerous, it grows and becomes larger. O D. Student A, because all living things must have DNA or RNA. They must use energy in order to reproduce and make more viruses.

Some viruses consist only of a protein coat surrounding a nucleic acid core. If you wanted to radioactively label the DNA but not the protein, you would use radioactive   A. Sulfur     B. Carbon     C. A or C   D. Phosphorus     E. Nitrogen

Fill in the blanks The discovery that genes can move from one chromosome location to another was made by ___________________ in studies on ___________________. Retrovirus and retrotransposon DNA sequences insert into the DNA of the host with the aid of sequences at their ends. These virus end sequences are called ___________________.  SR splicing factors bind to sequences in exons and recruit ___________________ to the 5’ splice site and ___________________ to the pyrimidine-rich sequences at the 3’ splice site. The experimental introduction of DNA into eukaryotic cells is called ___________________.

In which bacteriophage life cycle does the phage DNA become incorporated into the bacterial chromosome? a. Lytic b. Lysogenic c. Both lytic and lysogenic d. Neither lytic nor lysogenic

microbiology question Which of the following statements is true regarding bacteriophages and eukaryotic viruses?   A. Both may enter a host cell by endocytosis.   B. Both involve entry of the entire virus particle into the host cell.   C. Both can have segmented genetic material.   D. Bacteriophages leave the capsid outside of the cell that they infect, while eukaryotic virus infections involve the entry of the capsid with the nucleic acid.

Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its genome?   A. RNA dependent RNA polymerase   B. RNA dependent DNA polymerase   C. Reverse transcriptase   D. DNA Polymerase I   E. DNA dependent RNA polymerase

The following statements are correct, except? a. Non-enveloped viruses bind to their host cells via their capsid surface. b. The cell receptor may determine the host range and tissue tropism of viruses. c. Virus particles bind to receptors on their host cells to initiate entry. d. Naked virus particles bind via their transmembrane glycoproteins.

The Influenza virus is a (-)ss RNA virus that _________ bring its own RNA Polymerase into the host cell with it.  This virus will gain entry into host cells through _____________ by using the Hemagglutinin Spike protein present on its envelope, which allows the viral envelope to merge with the host cell membrane.   Select one: a.Does not need to / Fusion b.None of the Above c.Needs to / Membrane Fusion  d.Does not need to / Endocytosis  e.Needs to / Endocytosis