PBS 2.2.6 FH & Biotech

Front

What is the polymerase chain reaction (PCR)?

Back

A method of producing thousands of copies of a DNA segment using the enzyme DNA polymerase.

Front

What does HDL stand for and what is its function?

Back

HDL stands for High-Density Lipoprotein, which is responsible for removing excess cholesterol from the bloodstream and transporting it to the liver.

Front

What is a micropipette used for?

Back

A laboratory instrument used to measure, dispense, and transfer very small amounts of liquid.

Front

What does LDL stand for and what is its function?

Back

LDL stands for Low-Density Lipoprotein, which is responsible for transporting cholesterol to the cells.

Front

What is gel electrophoresis used for?

Back

A laboratory technique used to separate DNA, RNA, or proteins based on their size and charge.

Front

What is the role of restriction enzymes in biotechnology?

Back

Restriction enzymes are proteins that cut DNA at specific sequences, allowing for DNA manipulation and cloning.

Front

Define transposable elements.

Back

Transposable elements are sequences of DNA that can move or 'jump' to different positions within the genome.

Front

What is the significance of DNA standards in gel electrophoresis?

Back

DNA standards are known DNA fragments used as a reference to determine the size of unknown DNA samples in gel electrophoresis.

Front

What is the function of statins?

Back

Statins are medications that lower cholesterol levels in the blood by inhibiting the enzyme HMG-CoA reductase.

Front

What is the difference between good cholesterol and bad cholesterol?

Back

Good cholesterol (HDL) helps remove cholesterol from the bloodstream, while bad cholesterol (LDL) transports cholesterol to the cells, potentially leading to plaque buildup.