10 MCQ on Plant Science for various Agriculture Exams✅ Part -78

130. After culturing the anther of a plant, a few diploid plants were got along with haploid plants. Which of the following parts might have given rise to diploid plants?
     (a) Vegetative cell of pollen
     (b) Exine of pollen wall
     (c) Generative cell of pollen
     (d) Cells of anther wall

131. In which of the following types of embryo sac the megaspore nuclei do not fuse to form a triploid nucleus at chalazal end?
     (a) Plumbagella type
     (b) Adoxa type
     (c) Fritillaria type
     (d) None of these

132. An example of triploid tissue is
     (a) Endosperm of Lily
     (b) Endosperm of Cycas
     (c) Protonema of moss
     (d) Fern prothallus

133. Plant identical to mother plant can be had from
     (a) Seeds
     (b) Stem cutting
     (c) Both of these
     (d) Neither of these

134. Development and formation of pollen grains in anther of the stamen is known as
     (a) Pollination
     (b) Fertilization
     (c) Microsporogenesis
     (d) Megasporogenesis

135. Morphologically the white fluffy edible mass in maize is
     (a) Seed coat
     (b) Seed
     (c) Endosperm
     (d) Pericarp

136. Development of sporophyte without gametic fusion is known as
     (a) Apomixis
     (b) Apospory
     (c) Apogamy
     (d) Pollination

137. In which of the following plants does germination of the seed occur when fruit is still attached to the plant?
     (a) Epiphytes
     (b) Rhizophora
     (c) Pinus
     (d) Pisum

138. During meiosis in pollen mother cell, the daughter cells are interconnected by passages. The whole structure is called
     (a) Coenocyte
     (b) Plasmodesmata
     (c) Symplast
     (d) Syncytium

139. The endosperm of the seed of one of the following plants has a growth inhibitor
     (a) Cucurbita
     (b) Solanum
     (c) Iris
     (d) Xanthium

140. A linear tetrad of 4 cells lying in an axial row is formed during the development of
     (a) Embryo sac
     (b) Pollen grains
     (c) Ovary
     (d) Ovule

141. Fat is present in large quantities in which of the following?
     (a) Cotton fibres
     (b) Tuber of potato
     (c) Coconut endosperm
     (d) Embryo of pea

142. In which of the following grafting is very useful?
     (a) Citrus
     (b) Apples
     (c) Rubber
     (d) All of these

143. Fertilization in angiosperms is the
     (a) Fusion of two similar spores
     (b) Fusion of two dissimilar flowers
     (c) Union of stamens of unequal length
     (d) Fusion of two dissimilar gametes

144. Sporogenesis means
     (a) Germination of seed
     (b) Formation of zygote
     (c) Development and formation of spores
     (d) Formation of embryo