Genome Editing with CRISPR-Cas9 Video Quiz

What is the function of the CRISPR system in bacteria?

• To protect themselves from infection by viruses

• To synthesize proteins

• To produce energy for the cell

• To regulate gene expression

What is the role of Cas9 in the CRISPR system?

• It produces short RNA sequences

• It disables the virus by cutting its DNA

• It forms a complex with guide RNA

• It repairs DNA mutations

What happens when the Cas9 cuts the DNA in a living cell?

• The gene becomes more active

• The cell undergoes apoptosis

• The repair process is error prone

• The DNA is replicated

How can researchers replace a mutant gene with a healthy copy using CRISPR?

• By increasing the repair process efficiency

• By adding another piece of RNA

• By adding another piece of DNA carrying the desired sequence

• By inhibiting the Cas9 protein

In which type of cells can the CRISPR system be used to target many genes at once?

• Nerve cells

• Muscle cells

• Stem cells

• Blood cells

What is the advantage of using CRISPR for studying complex human diseases?

• It can only target a single gene at a time

• It is not error prone

• It can be used in test tubes only

• It can target many genes at once

In which field can CRISPR have applications according to the video?

• Construction

• Fashion

• Agriculture

• Hospitality