Question

Which of the following is the correct sequence of the units of genetics arranged in descending order of size?

• A. Gene →Cistron →Muton →Recon
• B. Gene → Cistron → Recon → Muton
• C. Gene →Muton → Cistron → Recon
• D. Gene →Recon → Cistron →Muton

Answer 1

The correct option is B

Gene → Cistron → Recon → Muton

Gene size ranges from 20,000 to 50,000 base pairs.

Cistron is a DNA strand/segment.

Recon is the smallest section of a chromosome which is capable of recombination.

Muton is the smallest element, which when altered leads to a mutation.