Exploring DNA: Structure and Mutations

Front

What is the function of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix.

Front

What is a deletion mutation and its impact on enzyme function?

Back

A deletion mutation can result in an enzyme being produced with altered function.

Front

What role does DNA polymerase play during DNA replication?

Back

DNA polymerase synthesizes new DNA strands.

Front

What is a silent mutation?

Back

A silent mutation is a change in the DNA sequence that does not affect the amino acid sequence.

Front

Which enzyme is responsible for unwinding the DNA double helix during replication?

Back

Helicase is responsible for unwinding the DNA double helix.

Front

Define DNA replication.

Back

DNA replication is the process by which a cell makes an exact copy of its DNA.

Front

What is the significance of mutations in DNA?

Back

Mutations can lead to changes in protein function, which can affect an organism's traits.

Front

Explain the difference between a point mutation and a frameshift mutation.

Back

A point mutation involves a change in a single nucleotide, while a frameshift mutation involves the insertion or deletion of nucleotides that alters the reading frame.

Front

What is the role of ligase in DNA replication?

Back

Ligase joins Okazaki fragments on the lagging strand during DNA replication.

Front

How do environmental factors influence mutations?

Back

Environmental factors such as radiation and chemicals can increase the rate of mutations.