Gene Editing and Transfer Techniques Quiz

What is the primary function of a probe in gene selection?

• To cut DNA at specific sites

• To identify and bind to specific DNA sequences

• To transfer genes between species

• To synthesise new proteins

Which of the following best describes the role of restriction enzymes in genetic engineering?

• They synthesise new DNA strands

• They act as molecular scissors to cut DNA at specific sequences

• They transfer genes between different organisms

• They repair damaged DNA

How can selected genes be transferred between species?

• By using restriction enzymes alone

• By using vectors such as plasmids or viruses

• By direct injection into the organism

• By natural selection

What is the CRISPR-Cas9 system primarily used for in genetic engineering?

• To synthesise proteins

• To edit and/or transfer genes

• To replicate DNA

• To sequence genomes

Which component of the CRISPR-Cas9 system is responsible for cutting the DNA?

• The guide RNA

• The Cas9 protein

• The restriction enzyme

• The DNA polymerase

What is a potential application of gene editing in agriculture?

• Creating crops with enhanced nutritional value

• Developing new species of animals

• Increasing the size of existing animal species

• Reducing the need for water in plant growth

Which of the following is an ethical consideration in gene editing?

• The cost of gene editing technologies

• The potential for unintended genetic consequences

• The speed of gene editing processes

• The availability of gene editing tools

What is the role of guide RNA in the CRISPR-Cas9 system?

• To cut the DNA at specific sites

• To direct the Cas9 protein to the target DNA sequence

• To synthesise new DNA strands

• To repair the DNA after cutting

Which of the following is NOT a method of gene transfer between species?

• Using plasmids

• Using viruses

• Using restriction enzymes directly

• Using microinjection

What is one of the main challenges in designing new proteins?

• Ensuring they are biodegradable

• Predicting their three-dimensional structure and function

• Making them resistant to all forms of degradation

• Ensuring they are visible under a microscope