Question

Expression of a particular gene helps to identify transformants. What is this gene known as?

विकल्प

• Plasmid

• Structural gene

• Selectable marker

• Intron

Answer 1

Selectable marker

Explanation:

A selectable marker is a gene whose expression lets you identify or select transformants (for example, antibiotic‑resistance genes or colour-producing marker genes); it permits screening of cells that have taken up the introduced DNA.