Question

Cis-trans expression of genes is an example of

• A. Mutation
• B. Intergenic crossing over
• C. Intragenic crossing over
• D. Cytoplasmic inheritance

Answer 1

The correct option is B Intergenic crossing over

An Intergenic region (IGR) is a stretch of DNA sequences located between genes. Intergenic regions are a subset of noncoding DNA. Cis-trans test is related with mutation. Cis-trans test is a test that determines whether two mutations that have the same effect occur in the same gene or in different genes. The mutation may be in either the cis-position (i. e., on the same chromosome) or the trans-position (one on each homologue).

So, the correct answer is 'Intergenic crossing over'.