Which of the following elements is a transposable element in Drosophila?

• A. Ds element
• B. Alu element
• C. P element
• D. Ac element

Answer: (C)

Verified step by step guidance

1. Understand the concept of transposable elements: Transposable elements, also known as 'jumping genes', are DNA sequences that can change their position within the genome. They play a significant role in genetic variation and evolution.
2. Identify the transposable elements in Drosophila: In the fruit fly Drosophila, the most well-known transposable element is the P element. It is a DNA transposon that can move within the genome and is often used in genetic research.
3. Differentiate between the given options: The Ds element and Ac element are transposable elements found in maize, not Drosophila. The Alu element is a transposable element found in humans, specifically a type of SINE (Short Interspersed Nuclear Element).
4. Recognize the correct transposable element for Drosophila: Based on the options provided, the P element is the correct transposable element associated with Drosophila.
5. Conclude with the identification: The P element is the transposable element in Drosophila, distinguishing it from the other elements listed, which are associated with different organisms.