A unique feature of angiosperm embryogenesis is the formation of a suspensor. Which statement regarding the suspensor is INCORRECT?
It connects the developing embryo to the maternal tissues.
It provides a conduit for nutrients and growth regulators.
It pushes the embryo into the endosperm.
It undergoes extensive cell divisions to form the embryo proper.
Related Questions
Viability of lupine seed is
Always less than one year.
Variable, depending on species and storage, but generally several years in cool, dry conditions.
Indefinite, as long as kept dry.
Only viable for a few weeks after harvest.
In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinaceous layer called
Scutellum
Coleorhiza
Aleurone layer
Coleoptile
What is the product of triple fusion in angiosperms?
Zygote
Embryo
Primary Endosperm Nucleus
Seed
Which of the following floral parts forms pericarp after fertilization?
Nucellus
Outer integument
Ovary wall
Inner integument
In flowering plants endosperms are
Haploid or diploid
Haploid only
Diploid only
Triploid
The persistent nucellus in a seed is known as:
Endosperm
Perisperm
Aril
Tegmen
Find out the mismatch
12 : 144
15 : 225
18 : 324
25 : 652
Given below are two statements:
Statement I: Cleistogamous flowers are always autogamous.
Statement II: Cleistogamy is disadvantageous as there is no chance for cross pollination.
In the light of the above statements, choose the correct answer from the options given below:
Both Statement I and Statement II are correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Statement I is incorrect but Statement II is correct
In human reproduction, the secondary oocyte completes meiosis II upon the entry of the sperm. What event marks this completion?
Formation of the first polar body
Extrusion of the second polar body
Completion of meiosis I
Ovulation
The extrusion of the second polar body is essential for:
(i) Completion of meiosis II
(ii) Maintaining the correct chromosome number in the zygote
(iii) Allowing sperm penetration
(i) only
(i) and (ii)
(ii) and (iii)
(i), (ii), and (iii)
