2.1

What is the structure of DNA?

DNA is double-stranded.

What is the template strand in gene expression?

The strand of DNA that is copied into RNA.

What direction does the coding strand of DNA run?

The coding strand runs from 5' to 3'.

What is the opposite direction of the template strand?

The template strand runs from 3' to 5'.

What is replaced in RNA compared to the coding strand?

Thymine (T) is replaced with Uracil (U) in RNA.

What are the terms used for the coding strand and template strand?

The coding strand is also known as the sense strand, and the template strand is referred to as the anti-sense strand.

What do leading and lagging strands refer to?

They are concepts related to DNA replication.

Why are DNA sequences stored in public databases?

To allow standardization and accessibility for research.

How is the coding strand presented in databases?

The coding strand is presented in the 5' to 3' direction and inferred using base pairing rules.

What are reference sequences?

Agreed-upon versions of genes or genomes, usually focused on specific DNA regions.

Why is strand identity important in RNA transcription?

It determines which strand is used for transcription, affecting the structure of RNA for protein translation.

What groundwork does understanding DNA strands provide?

It sets the groundwork for exploring DNA packaging into chromosomes.