Q111
Study of formation, growth and development of new individual from an egg is
Correct Answer
Option B
Solution
(b) Embryology: study of development from fertilization onward.
Sexual Reproduction in Flowering Plants
Q112
Adventive polyembryony in citrus is due to
Correct Answer
Option A
Solution
(a) Adventive embryos arise from proliferation of nucellus cells in Citrus.
Q113
Why is vivipary an undesirable character for annual crop plants?
Correct Answer
Option D
Solution
(d) Viviparous seeds germinate on the plant and cannot be stored for the next season.
Q114
Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characteristic features of
Correct Answer
Option A
Solution
(a) Cycads have top-shaped multiciliate male gametes and seeds with two cotyledons.
Q115
The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in
Correct Answer
Option A
Solution
(a) Pomegranate (Balausta): chambered false berry from inferior ovary; seeds with succulent testa.
Q116
The fleshy receptacle of syconus of fig encloses a number of
Correct Answer
Option A
Solution
(a) Syconus of fig encloses numerous achenes.
Q117
Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is
Correct Answer
Option B
Solution
(b) Cypsela: dry, indehiscent fruit from inferior bicarpellary ovary (e.g., sunflower).
Q118
Endosperm is consumed by developing embryo in the seed of
Correct Answer
Option C
Solution
(c) Pea is exalbuminous — endosperm completely absorbed; food stored in cotyledons.
Q119
An example of a seed with endosperm, perisperm, and caruncle is
Correct Answer
Option C
Solution
(c) Castor seed has endosperm, perisperm, and a caruncle.
Q120
Cotyledons and testa respectively are edible parts in
Correct Answer
Option D
Solution
(d) Cotyledons are edible in groundnut; testa (seed coat) is edible in pomegranate.
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