Grafting is successful in dicots but not in monocots because the dicots have:

In which one pair both the plants can be vegetatively propagated by leaf pieces

Match the following ovular structure with post fertilization structure and select the correct alternative.

The arrangement of the nuclei in a normal embryo sac in the dicot plants is

Apomictic embryos in citrus arise from

Fibrous thickenings of hygroscopic nature are found in this part of the anther wall:

In a type of apomixis known as adventive embryony, embryos develop directly from the

In nature, cleistogamous flowers are

Which one of the following pairs of plant structures has haploid number of chromosomes?

Which one of the following is surrounded by a callose wall?