PrepBharat

1.After fertilization which part of flower generally withers and falls off?
a) Sepals
b) Petals
c) Stamens
d) All of these

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2. Select the false statement.
a) Ovule develops into seed
b) Ovary develops into fruit
c) Zygote develops into embryo
d) Placenta develops into pericarp

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3.A, B, C and D shows which type of placentation respectively?

a) A: Marginal, B: Free central, C: Perietal, D: Axile
b) A: Perietal, B: Marginal, C: Axile, D: Free central
c) A: Axile, B: Free central, C: Marginal, D: Perietal
d) A: Axile, B: Perietal, C: Free central, D: Marginal

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4. Gametes in haploid organisms are produced by
a) Amitosis
b) Mitosis
c) Meiosis
d) Cleavage

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5. Embryonal protection and care are better in
a) Oviparity
b) Parthenogenesis
c) Viviparity
d) Polyembryony

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6. After fertilization in angiosperms, ovules develop into
a) Pericarp
b) Fruit
c) Seed
d) Embryo

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7. ‘A’ in the diagram shows:

a) Testis of a male cockroach
b) Ovary of a female cockroach
c) Testis of an earthworm
d) Ovary of an earthworm

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8. The progenitor of the next generation inside the mature seed is known as
a) Micropyle
b) Pericarp
c) Embryo
d) Zygote

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9. Identify the ploidy of the following parts of flowering plants.
Ovary, Anther, Egg, Pollen, Male gamete and Zygote
a) 2n, 2n, n, n, n, 2n
b) 2n, 3n, n, n, 2n, 2n
c) 2n, n, n, n, n, 2n
d) 2n, 2n, n, 2n, n, 2n

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10.Select the correct statement from the following.
(A) In flowering plants, the zygote is formed inside the ovule.
(B) In reptiles and birds, the fertilized eggs covered by hard calcareous shell (Cleidoic) are laid in a safe place in environment.
(C) In organisms belonging to fungi and algae, the zygote develops a thick wall that is vulnerable to dessication and damage.
(D) During embryogenesis, zygote undergoes cell division and cell differentiation.
a) A and C only
b) A, B and C only
c) C and D only
d) A, B and D only

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