WorksheetsViruses and Cell Division Quiz
Total questions: 15
Worksheet time: 8mins
Which of the following is a component found in all viruses?
Ribosomes
Capsid
Mitochondria
Nucleus
What is the main function of the viral envelope?
To store genetic material
To help the virus attach to host cells
To produce energy
To synthesize proteins
During which stage of mitosis do the chromosomes line up in the middle of the cell?
Prophase
Metaphase
Anaphase
Telophase
Which process results in the formation of four genetically unique daughter cells?
Mitosis
Meiosis
Binary fission
Budding
What is the name of the cell line derived from Henrietta Lacks that is still used in research today?
HeLa cells
HL-60 cells
Jurkat cells
CHO cells
Which of the following best describes the difference between lytic and lysogenic viral replication cycles?
Lytic cycle destroys the host cell, lysogenic cycle integrates viral DNA into the host genome
Lytic cycle integrates viral DNA, lysogenic cycle destroys the host cell
Both cycles destroy the host cell immediately
Both cycles integrate viral DNA into the host genome
Compare the chromosome number in daughter cells produced by mitosis and meiosis.
Both have double the original number
Mitosis produces cells with the same number, meiosis with half
Mitosis produces cells with half, meiosis with the same number
Both have half the original number
Which stage of mitosis is characterized by the separation of sister chromatids?
Prophase
Metaphase
Anaphase
Telophase
Explain why viruses are considered obligate intracellular parasites.
They can reproduce on their own
They require a host cell to reproduce
They have their own metabolism
They are made of cells
Which of the following best explains why HeLa cells are important in scientific research?
They are the only human cells that can be grown in a lab
They can divide indefinitely and have contributed to many medical breakthroughs
They are immune to all viruses
They are the first cells to be cloned
A scientist observes a cell with chromosomes aligned at the center and spindle fibers attached. Predict the next event in mitosis for this cell.
Chromosomes will condense further
Chromatids will be pulled apart toward opposite poles
Nuclear envelope will reform
Cell will begin DNA replication
Given a diagram of a virus, how would you identify the genetic material if you know the virus is a retrovirus?
Look for double-stranded DNA
Look for single-stranded RNA
Look for ribosomes
Look for mitochondria
A patient’s cells are found to have 46 chromosomes after cell division. Was this division most likely mitosis or meiosis? Justify your answer.
Mitosis, because chromosome number is maintained
Meiosis, because chromosome number is halved
Mitosis, because chromosome number is halved
Meiosis, because chromosome number is maintained
If a virus mutates so that its capsid cannot bind to host cell receptors, what is the most likely outcome for the virus?
It will infect more cells
It will be unable to infect host cells
It will replicate faster
It will become a bacterium
Henrietta Lacks’ cells were taken without her consent and used for research. What ethical principle does this situation highlight for modern biomedical research?
Informed consent
Double-blind testing
Placebo effect
Randomization
