Question

The scientist who first discovered cytoplasmic inheritance was

• A. Correns
• B. Rhoades
• C. Mendel
• D. Morgan

Answer 1

The correct option is A Correns

There are many exceptions to the rule in genetics. One of them is that not all inherited characters are determined by genes located in the nucleus. A small minority are controlled by genes located in cell organelles in the cytoplasm i.e. cytoplasmic genes, and these, of course, are exceptions to the chromosome theory of inheritance. Since they are extrachromosomal (i.e. outside the chromosomes), such genes are not subject to the normal rules of Mendelian heredity.

Evidence for cytoplasmic inheritance was first reported by Correns.

So, the correct answer is 'Correns'.