Question

Mobile genetic elements in maize were discovered by ___________.

• A. D. Baltimore
• B. H. G. Khorana
• C. N. E. Borlaug
• D. B. McClintock

Answer 1

The correct option is D B. McClintock

• A transposable element is a DNA sequence that can change its position within a genome, sometimes creating or reversing mutations and altering the cell's genetic identity and genome size.
• They are also termed as mobile genetic elements. Barbara McClintock discovered the first transposable elements in maize (Zea mays) at the Cold Spring Harbor Laboratory in New York and earned a noble prize in 1983.

So the correct answer is option D.