During embryogenesis zygote undergoes
Cell division
Cell differentiation
Meiosis only
Both 1 and 2
Related Questions
A plant has 24 chromosomes in microspore mother cell the number of chromosomes in its endosperm will be.
36
24
12
48
A seed matures if water content is reduced to …’A’ ….. . If the general metabolism …B…. . The embryo enter a state called … C … .
Choose correct option for A,B and C
A-50-60%, B-fast, C-infertile
A-10-15%, B-slow down, C-dormancy
A-35-50%, B-slow down, C-development
A-35-60%, B-fast, C-Embryogenesis
Non-endospermic seeds are seen in
Groundnut
Pea
Beans
All of these
Cleistogamous flowers are known for:
(i) Never opening
(ii) Self-pollination
(iii) Promoting genetic diversity
(iv) Requiring pollinating agents
Choose the correct combination:
(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(i) and (iv)
Coleorhiza is
Lower end of embryonal axis in monocot
Lower end of embryonal axis in dicots
Lower end of embryonal axis in potato family
upper end of embryonal axis in monocot
In embryo sac, , 2, 3, conditions are found respectively in
Egg, antipodal, endosperm
Nucleus, endosperm, egg
Antipodal, zygote, endosperm
Endosperm, nucleus, egg
Which of the following accurately describes the difference between the development of the nuclear endosperm and the cellular endosperm?
Nuclear endosperm is formed after fertilization, while cellular endosperm is formed before fertilization.
Nuclear endosperm is triploid, while cellular endosperm is diploid.
Nuclear endosperm is found in monocots, while cellular endosperm is found in dicots.
Nuclear endosperm involves free-nuclear divisions before cell wall formation, while cellular endosperm involves cell wall formation after each division.
Function of micropyle is
Helps in germination
Helps in surviving
Both (a) and (b)
Helps in endosperm formation
Perisperm is?
peripheral part of endosperm
remnant of endosperm
disintegrated secondary nucleus
persistent of nucellus
In an angiosperm embryo sac, the ploidy level of the zygote, the primary endosperm nucleus, and a synergid (post-fertilization) are, respectively:
n, 2n, 3n
2n, 3n, n
3n, 2n, n
n, 3n, 2n
