Biotechnology Concepts and Techniques

The lecture covers biotechnology, focusing on recombinant DNA, plasmids, and genetic engineering. It explains the use of restriction enzymes, plasmids, and bacterial transformation in gene manipulation. The lecture also discusses DNA sources, reverse transcriptase, PCR, gel electrophoresis, cloning, and stem cells, highlighting their applications and limitations.

What is the primary purpose of recombinant DNA technology?

• To create new species

• To clone organisms

• To combine DNA from different sources

• To eliminate genetic diseases

Which organism is commonly used to produce human insulin through genetic engineering?

• Fruit flies

• Mice

• E. coli

• Yeast

What is the role of restriction enzymes in genetic engineering?

• To transport genes

• To synthesize proteins

• To cut DNA at specific sequences

• To replicate DNA

What is the purpose of using plasmids in biotechnology?

• To sequence DNA

• To destroy unwanted DNA

• To transport genes into cells

• To amplify DNA

Why is complementary DNA (cDNA) used in genetic engineering?

• To increase gene size

• To remove introns

• To add introns

• To create artificial chromosomes

What is the function of reverse transcriptase in biotechnology?

• To cut DNA

• To replicate DNA

• To synthesize RNA

• To convert mRNA to DNA

What is the main purpose of PCR (Polymerase Chain Reaction)?

• To clone organisms

• To sequence DNA

• To amplify DNA

• To cut DNA

How does gel electrophoresis separate DNA fragments?

• By shape

• By size

• By color

• By charge

What is a key feature of DNA sequencing technology?

• It stops DNA polymerase at specific points

• It amplifies DNA

• It clones entire organisms

• It uses RNA probes

What is a common method for cloning animals?

• Gene splicing

• PCR

• Nuclear transplantation

• Gel electrophoresis