Question

Ovule in which funicle, chalaza and micropyle occur in one vertical plane is _________.

• A. Anatropous
• B. Orthotropous
• C. Amphitropous
• D. Campylotropous

Answer 1

The correct option is B Orthotropous

Those ovules in which the funicle, chalaza and micropyle lie in one straight line are called orthotropous ovules. Example, Urticaceae.

A. Anatropous ovules are those that have turned 180${}^o$ and so the micropyle lies close to the hilum.

B. Orthotropous ovules are those that havefunicle, chalaza and micropyle lie in one straight line.

C. Amphitropous ovules are curved and are horseshoe shaped.

D. Campylotropous ovules are curved such that micropyle and hilum do not lie in the straight line.

Hence, the correct answer is 'Orthotropous'.