#1
Which of the following is an application of genetic engineering in medicine?
Production of insulin using genetically modified bacteria
ExplanationInsulin production using modified bacteria helps treat diabetes.
#2
What is the term used to describe the process of introducing foreign DNA into an organism's genome?
Gene cloning
ExplanationGene cloning refers to introducing foreign DNA into genomes.
#3
What is the primary purpose of genetic engineering in agriculture?
To increase crop yield and resistance to pests and diseases
ExplanationGenetic engineering aims to improve crop yield and resistance.
#4
Which of the following is an application of genetic engineering in environmental conservation?
Cloning endangered species
ExplanationGenetic engineering aids in cloning endangered species for conservation.
#5
What is the purpose of CRISPR-Cas9 technology in genetic engineering?
To edit genes with high precision
ExplanationCRISPR-Cas9 enables precise gene editing.
#6
Which of the following techniques is used in creating transgenic organisms?
Gene transfer
ExplanationGene transfer is used to create transgenic organisms.
#7
Which enzyme is commonly used to cut DNA at specific sequences in genetic engineering?
Restriction endonuclease
ExplanationRestriction endonucleases cut DNA at specific sequences.
#8
What is the purpose of gene therapy in genetic engineering?
To cure genetic disorders by correcting defective genes
ExplanationGene therapy aims to correct defective genes causing disorders.
#9
What is the purpose of site-directed mutagenesis in genetic engineering?
To introduce specific mutations at desired locations in genes
ExplanationSite-directed mutagenesis introduces specific mutations.
#10
Which of the following is an example of a biopharmaceutical produced using genetic engineering?
Insulin
ExplanationInsulin is a biopharmaceutical produced via genetic engineering.
#11
What is the function of a selectable marker in recombinant DNA technology?
To identify transformed cells
ExplanationSelectable markers help identify successfully transformed cells.
#12
Which of the following is an ethical concern associated with the use of genetic engineering?
Creation of genetically modified humans
ExplanationEthical concerns arise regarding creating modified humans.
#13
Which of the following is an example of a genetically modified organism (GMO) used in agriculture?
Bt corn
ExplanationBt corn is a genetically modified organism in agriculture.
#14
What is the role of RNA interference (RNAi) in genetic engineering?
To silence gene expression
ExplanationRNAi is used to silence gene expression.
#15
What is the role of gene editing technologies like TALENs and ZFNs in genetic engineering?
To edit genes with high precision
ExplanationTALENs and ZFNs edit genes precisely.
#16
Which of the following statements about CRISPR-Cas9 technology is true?
It has revolutionized gene editing due to its simplicity and efficiency
ExplanationCRISPR-Cas9 revolutionized gene editing for its efficiency.