BIOTECHNOLOGY

What technique is used for separating DNA fragments?

• Gel electrophoresis

• Chromatography

• Transformation

• Transduction

DNA fragments are

• negatively charged

• neutral

• either negatively or positively charged depending on their size

• positively charged

Stirred-tank bioreactors have been designed for

• Purification of the product

• Ensuring anaerobic conditions in the culture vessel

• availability of oxygen throughout the process

• Addition of preservatives to the product

  5%

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

 

which of the following is not a feature of plasmids?

• Single stranded

• Independent replication

• Transferable

• Circular structure

The DNA molecule to which the gene of interest is integrated for cloning is called

• Transformer

• Carrier

• Vector

• Template

The cutting of DNA at specific locations became possible with the discovery of

• Selectable markers

• Probes

• Restriction enzymes

• Ligases

What is the purpose of the polyethylene glycol method?

• biodiesel production

• energy production from sewage

• gene transfer without a vector

• seedless fruit production

What is a product of biotechnology?

• transgenic crop (GM crop)

• humulin

• biofertilizer

• All of these

What enzyme joins the ends of two strands of nucleic acid?

• polymerase

• synthetase

• ligase

• helicase

When separated on an agarose gel, DNA fragments can be visualized after staining with?

• Acetocarmine

• Aniline blue

• Ethidium bromide

• Bromophenol blue