Reyana09
Famed Member
Joined: Nov 16, 2021
Last seen: Dec 29, 2021
Last seen: Dec 29, 2021
Follow
Answer to: How many meiotic divisions are required for the formation of 100 pollen grains?
Correct answer: (c) 25
4 years ago
Answer to: How many pollen mother cells should undergo meiotic division to produce 64 pollen grains?
Correct answer: (c) 16
4 years ago
Answer to: Pollen grain is a (a) megaspore (b) microspore (b) microspore (d) microsporangium
Correct answer: (b) microspore Explanation: In seed plants the microspores develop into pollen grains each containing a reduced, multicellular mal...
4 years ago
Answer to: Endosperm is completely consumed by the developing embryo in
Correct answer: (a) pea and groundnut
4 years ago
Answer to: _______ is not an endospermic seed.
Correct answer: (a) Pea
4 years ago
Answer to: Coleoptile and coleorhiza are the protective sheaths covering _______ and _______ respectively.
Correct answer: (c) plumule, radicle
4 years ago
Answer to: The portion of embryonal axis between plumule (future shoot) and cotyledons is called
Correct answer: (b) epicotyl
4 years ago
Answer to: Father of Indian embryology is (a) P. Maheshwari (b) Swaminathan (c) R. Misra (d) Butler
Correct answer: (a) P. Maheshwari
4 years ago
Answer to: The true embryo develops as a result to fusion of
Correct answer: (b) egg cell and male gamete
4 years ago
Answer to: The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes?
Correct answer: (a) 8
4 years ago
Answer to: Double fertilisation was first discovered in 1898 by _______ in Fritillaria and Lilium.
Correct answer: (a) Nawaschin
4 years ago
Answer to: Triple fusion in Capsella bursa pastoris is fusion of male gamete with
Correct answer: (c) secondary nucleus
4 years ago
Answer to: Several pollen grains form a unit designated as pollinium in Family
Correct answer: (b) Asclepiadaceae Pollen
4 years ago
Answer to: Study of pollen grains is called
Correct answer: (c) palynology
4 years ago
Answer to: In angiosperms various stages of reductional division can best be studied in
Correct answer: (a) young anthers
4 years ago
Answer to: Callase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by
Correct answer: (b) tapetum
4 years ago
Answer to: The innermost layer of anther is tapetum whose function is
Correct answer: (c) nutrition
4 years ago
Answer to: The stamens represent (a) microsporangia (b) male gametophyte (c) male gametes (d) microsporophylls
Correct answer: (d) microsporophylls
4 years ago
Answer to: The anther wall consists of four wall layers where
Correct answer: (b) middle layers lie between endothecium and tapetum
4 years ago