PBS 1.1.5-1.1.6 Review

Front

What are the two molecules that form the sides (backbone) of the DNA ladder?

Back

Deoxyribose sugar and phosphate.

Front

How many restriction sites are typically analyzed in DNA experiments?

Back

2.

Front

True or False: The DNA Ladder or DNA Marker is an important part of the gel results.

Back

True.

Front

What is the primary function of restriction enzymes in molecular biology?

Back

To cut the DNA at specific locations.

Front

Why do DNA fragments move towards the positive electrode during gel electrophoresis?

Back

DNA is negatively charged, so it is attracted to the positive end of the unit.

Front

What is the structure of DNA commonly described as?

Back

A double helix.

Front

What role does gel electrophoresis play in DNA analysis?

Back

It separates DNA fragments based on size.

Front

What is the significance of the DNA ladder in gel electrophoresis?

Back

It serves as a molecular weight marker to estimate the size of DNA fragments.

Front

What is the charge of DNA molecules?

Back

Negatively charged.

Front

What are restriction enzymes derived from?

Back

Bacteria.