Question
Biology Question on the molecular basis of inheritance
Genes for cytoplasmic male sterility in plants are generally located in:
A
Chloroplast genome
B
Mitochondrial genome
C
Nuclear-genome
D
Cytosol
Answer
Mitochondrial genome
Explanation
Solution
Genes for cytoplasmic male sterility (CMS) in plants are generally located in the mitochondrial genome. Cytoplasmic male sterility is a phenomenon in which a plant is unable to produce functional pollen due to genetic factors located in the mitochondria. This trait is often exploited in plant breeding, particularly for the production of hybrid seeds.
So, the correct option is (B): Mitochondrial genome