Question

Which type of transposon would contain a gene for transposase? which type of transposon would contain a gene for transposase? neither simple nor complex transposons; the transposase enzyme is coded independently by the cell. complex transposons simple transposons both simple and complex transposons?

Answer 1

Both simple and complex transposons contain a gene for transposase, which is crucial for their ability to move within the genome. Simple transposons have basic elements for transposition while complex ones can carry additional genes.

Step-by-step explanation:

The transposons that contain a gene for transposase are both simple transposons and complex transposons. These genetic elements can move within a genome due to the action of the enzyme transposase, which allows them to excise from one location in the DNA and integrate into DNA elsewhere through a process called transposition. The presence of transposase is essential for the autonomous movement of these transposons. There are differences in the mechanisms by which they transpose. Simple transposons generally possess only the essential elements like transposase and inverted repeat sequences for movement, while complex transposons can carry additional genes, such as antibiotic resistance genes in bacteria.

Examples include the Ac element, which has a transposase gene and can move independently, and the Mu phage in bacteria, a complex transposon with additional genes. In contrast, the maize Ds element is non-autonomous because it lacks a gene for transposase and relies on another element like Ac to provide the enzyme for its mobility.

Answer 2

The right answer is both simple and complex transposons.

A transposable element, sometimes called a transposon, is a DNA sequence capable of moving autonomously in a genome by a mechanism called transposition.

Transposase is an important and specific element of every transposon, whether it is simple or complex transposons, or it has a copy-and-paste or a cut-and-paste transposition mechanism,