Which of the following statement(s) is/are incorrect?
(i) Endosperm formation starts prior to first division of zygote
(ii) Angiospermic endosperm is mostly triploid while gymnospermic is haploid
(iii) The most common type of endosperm is nuclear
(iv) Coconut has both liquid nuclear (multinucleate) and cellular endosperm
(v) Green tender coconut water is liquid female gametophyte

Q. Which of the following statement(s) is/are correct?
I. The presence of a triploid endosperm nucleus is a distinctive feature of gymnosperms.
II. In gymnosperms, endosperm represents the female gametophyte.

Q. Assertion : Nuclear endosperm is formed by subsequent nuclear divisions with or without wall formation.
Reason : Coconut is an example of such endosperm, where the endosperm remains nuclear throughout the development of the fruit.

Q. Read the following statements and find out the incorrect statement.

a. Embryo development precedes endosperm development.
b. Though the seeds differ greatly the early stages of embryo development (embryogeny) are similar in both monocotyledons and dicotyledons.
c. A typical dicotyledonous embryo consists of an embryonal axis and two cotyledons.
d. Endosperm may either be completely consumed by the developing embryo (e.g., castor and coconut) before seed maturation or it may persist in the mature seed (e.g., wheat, rice, maize, pea, groundnut and beans).
e. The coconut water from tender coconut is cellular endosperm and the surrounding while kernel is the nuclear endosperm.

Q. Assertion :In Cocos nucifera, coconut water represents the cellular endosperm and the surrounding white kernel represents the free-nuclear endosperm. Reason: Endosperm is always completely consumed by developing embryo before seed maturation.