NYS Lab #4: Biodiversity and Relationships

Front

What does it mean when protein sequences in one organism resemble those of another?

Back

It suggests shared ancestry, also known as common ancestors.

Front

What can be inferred about two closely related organisms?

Back

They would have very similar DNA sequences.

Front

Which type of evidence is most reliable for determining the relatedness between organisms?

Back

Genetic sequence.

Front

What chemicals are used to cut DNA into fragments during gel electrophoresis?

Back

Restriction enzymes.

Front

What is high biodiversity?

Back

Having a high variety of different organisms.

Front

Define biodiversity.

Back

The variety of life in the world or in a particular habitat or ecosystem.

Front

What is a common ancestor?

Back

An ancestor that two or more descendants share.

Front

How do mutations affect genetic sequences?

Back

Mutations can lead to changes in the DNA sequence, which may affect the proteins produced.

Front

What is gel electrophoresis used for?

Back

To separate DNA fragments based on their size.

Front

What role do restriction enzymes play in genetic engineering?

Back

They cut DNA at specific sequences, allowing for the manipulation of genes.