What is the difference between a viral lytic cycle and a viral lysogenic cycle? What will be an ideal response?
In a lytic infection the virus destroys the host cell. The virus takes over the host cell’s
metabolism and forces the host cell to replicate viral particles. Lytic infections result in cell
lysis and death.
In lysogenic infections, temperate viruses integrate into the host DNA. The integrated virus is
called a provirus. When the bacterial DNA replicates, the provirus DNA replicates with the
host cell genome. Temperate viruses revert to lytic cycles under stress conditio
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The stage of the fungal life cycle where two or more genetically distinct nuclei are found in the same cell is referred to as:
A. plasmogamy. B. diploid stage. C. zygote stage. D. karyogamy.
Which of the following is not true of the process of nonsense-mediated mRNA decay?
A. Its function is to destroy mRNA molecules with premature stop codons. B. The participation of the ribosome is not required. C. It requires the marking of the mRNA before the mRNA is exported to the cytoplasm. D. It involves the removal of the 5' cap of the mRNA.
In the cross Cc ´ Cc, gametes have a ____ chance of receiving either allele
a. 25-75 b. 50-50 c. 75-25 d. 60-40 e. 90-10
A drug that causes potassium to leak out of the neuron would:
A) cause the outside of the neuron to become more negative. B) make it harder to trigger action potentials in the neuron. C) cause the inside of the neuron to become more positive. D) make it easier to trigger action potentials in the neuron.