DNA, DNA Replication, RNA, and Transcription

Front

What is the role of helicase in DNA replication?

Back

Helicase is the enzyme that unzips the DNA double helix, separating the two strands to prepare for replication.

Front

How much of the DNA is copied during transcription?

Back

Only the needed genes are copied during transcription.

Front

Who is one of the scientists credited for discovering the structure of DNA?

Back

Rosalind Franklin is credited for her contributions to the discovery of DNA's structure.

Front

What process must a cell's DNA undergo in preparation for cell division?

Back

Replication is the process that DNA must undergo to prepare for cell division.

Front

Which enzyme is responsible for adding new nucleotides during DNA replication?

Back

DNA Polymerase is responsible for adding new nucleotides during replication.

Front

What is the function of RNA polymerase?

Back

RNA polymerase synthesizes RNA from a DNA template during transcription.

Front

Define transcription in the context of genetics.

Back

Transcription is the process of copying a segment of DNA into RNA.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.

Front

What is the significance of the 5' and 3' ends of a DNA strand?

Back

The 5' and 3' ends indicate the directionality of the DNA strand, which is crucial for replication and transcription.

Front

What are nucleotides and what are they composed of?

Back

Nucleotides are the building blocks of DNA and RNA, composed of a sugar, a phosphate group, and a nitrogenous base.