List of top Botany Questions on Plant Embryology

Ethylene is a phytohormone and also: A. Known as fruit ripening hormone B. Causes leaf epinasty in tomato, potato and pea C. Induces flowering in pine apple and mango D. Promotes formation of male flowers and suppresses the number of female flowers considerably E. Promotes abscission of leaves in plants. Choose the correct answer from the options given below:

The egg apparatus in the mature embryo sac consists of a single egg cell in ________.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Meristemoids are individual cells that are responsible for the differentiation of distinct structures. Reason (R): The microspore divides into a larger vegetative cell and a smaller generative cell. In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Primary endosperm is formed earlier than the zygote although the union between the male gamete and egg happens earlier than the union of male gamete with the polar nuclei. Reason (R): Cytoplasm of central cell is more active than the egg. In the light of the above statements, choose the most appropriate answer from the options given below:

The characteristic of Cleistogamous flowers is :

The early development of monocot and dicot embryo is similar up to which stage?