10 MCQ on Plant Science for various Agriculture Exams✅ Part -60


89. Cruciform corolla is found in
(a) Barley
(b) Berseem
(c) Radish
(d) Pea
Answer: (c) Radish


90. Ligulate or strap-shaped corolla is a characteristic feature of
(a) Disc floret
(b) Ray floret
(c) Both disc and ray floret
(d) None of these
Answer: (b) Ray floret


91. The structure in a flower that is homologous to the prothallus of fern is the
(a) Anther
(b) Embryo
(c) Ovary
(d) Spore
Answer: (d) Spore


92. For the study of parts of a flower, most suitable flower would be
(a) Mustard
(b) Castor
(c) Tomato
(d) Sunflower
Answer: (a) Mustard


93. Epipetalous relates to
(a) Aestivation of petals
(b) Position of ovary
(c) Stamens
(d) Placentation
Answer: (c) Stamens


94. The pappus is the modification of
(a) Corolla
(b) Calyx
(c) Bracts
(d) Gynoecium
Answer: (b) Calyx


95. Which of the following is considered equivalent to perianth?
(a) Glumes
(b) Lodicules
(c) Superior palea
(d) Inferior palea
Answer: (b) Lodicules


96. A flower is said to be zygomorphic when
(a) Every vertical section passing through its centre divides it into two equal parts
(b) There is only one vertical section possible passing through its centre and divides it into two equal parts
(c) Any of the above two conditions is present
(d) None of the above condition is present
Answer: (b) There is only one vertical section possible passing through its centre and divides it into two equal parts


97. In a papilionaceous flower, large vexillum covers two wings; wings cover the keel. This type of aestivation in corolla is known as
(a) Ascending imbricate
(b) Descending imbricate
(c) Twisted
(d) Valvate
Answer: (b) Descending imbricate


98. In unilocular ovary, ovules develop on the inner wall of the ovary. The placentation is
(a) Marginal
(b) Axile
(c) Parietal
(d) Free central
Answer: (c) Parietal


99. When stamens are attached to petals, this condition is known as
(a) Gynandrous
(b) Epipetalous
(c) Epiphyllous
(d) Epitepalous
Answer: (b) Epipetalous


100. Tetradynamous condition is related to
(a) Androecium
(b) Gynoecium
(c) Inflorescence
(d) Perianth
Answer: (a) Androecium


101. A perennial angiosperm flowering once in its lifetime is called
(a) Monocarpic
(b) Xerophytic
(c) Halophyte
(d) Polycarpic
Answer: (a) Monocarpic


102. In which of the following male and female flowers are found in the same plant?
(a) Unisexual
(b) Bisexual
(c) Monoecious
(d) Dioecious
Answer: (c) Monoecious


103. Unisexual flowers are also termed as
(a) Monoclinous
(b) Diclinous
(c) Monoecious
(d) Dichogamous
Answer: (b) Diclinous


104. Leafy or vegetative bract is characteristic of the flower of
(a) Cruciferae
(b) Malvaceae
(c) Liliaceae
(d) Papilionatae
Answer: (d) Papilionatae


105. Floral bud tendrils are found in
(a) Gloriosa
(b) Antigonon
(c) Smilax
(d) Pisum
Answer: (d) Pisum


106. Ebracteate flowers are common among
(a) Malvaceae
(b) Cruciferae
(c) Solanaceae
(d) Leguminosae
Answer: (a) Malvaceae


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