#1
Which organism is commonly used as a model organism in genetic research?
All of the above
ExplanationVarious organisms like fruit fly, mouse, zebrafish, and nematode are commonly used due to their unique advantages.
#2
What is the main advantage of using model organisms in genetic research?
They have a short generation time
ExplanationModel organisms offer short generation times, facilitating quicker observations of genetic changes across generations.
#3
Which of the following techniques is commonly used for introducing foreign genes into model organisms?
Transgenesis
ExplanationTransgenesis involves inserting foreign genes into organisms, allowing researchers to study their effects.
#4
What is the role of a selectable marker in genetic manipulation?
To ensure only cells containing the desired gene are selected
ExplanationSelectable markers aid in identifying cells that have successfully incorporated the desired genetic material.
#5
In which model organism was the CRISPR-Cas9 system first successfully demonstrated for genome editing?
Nematode (Caenorhabditis elegans)
ExplanationCRISPR-Cas9 was initially demonstrated in nematodes, showcasing its potential for precise genome editing.
#6
Which model organism is often used to study embryonic development?
Zebrafish (Danio rerio)
ExplanationZebrafish embryos are transparent, making them ideal for studying embryonic development.
#7
Which of the following is a commonly used method for delivering CRISPR components into cells?
All of the above
ExplanationCRISPR components can be delivered into cells through various methods like viral vectors, electroporation, and microinjection.
#8
Which model organism is commonly used to study neuronal development and function?
Mouse (Mus musculus)
ExplanationMice are frequently used in studying neuronal development and function due to their genetic similarity to humans.
#9
Which of the following is NOT a common application of genetic manipulation in model organisms?
Creating artificial intelligence
ExplanationGenetic manipulation in model organisms primarily focuses on understanding biological processes rather than creating artificial intelligence.
#10
What is the purpose of homologous recombination in genetic manipulation?
To repair damaged DNA
ExplanationHomologous recombination is a DNA repair mechanism used in genetic manipulation to introduce specific changes.