Question

Which is true for zygomorphic flowers?

• A. Can be divided into two halves in any vertical plane, bilateral symmetry
• B. Can be divided into two halves in one horizontal plane, bilateral symmetry
• C. Can be divided into two halves in one vertical plane, bilateral symmetry
• D. Can be divided into two halves in any vertical plane, radial symmetry

Answer 1

The correct option is C

Can be divided into two halves in one vertical plane, bilateral symmetry

In symmetry, the flower may be actinomorphic (radial symmetry) or zygomorphic (bilateral symmetry).
When a flower can be divided into two similar halves only in one particular vertical plane, it is zygomorphic, e.g., pea, gulmohur, bean, Cassia.
When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is said to be actinomorphic, e.g., mustard, datura, chilli.