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| (a) Tight junctions | (i) Cement neighbouring cells together to form sheet |
| (b) Adhering Junctions | (ii) Transmit information through chemical to another cells |
| (c) Gap junctions | (iii) Establish a barrier to prevent leakage of fluid across epithelial cells |
| (d) Synaptic junctions | (iv) Cytoplasmic channels to facilitate communication between adjacent cells |
Select correct option from the following
| Column-$I$ | Column-$II$ |
| (Chromosome) | (Position of Centromere) |
| $A$. Metacentric | $I$. At the tip |
| $B$. Submetacentric | $II$. Almost near the tip |
| $C$. Acrocentric | $III$. At the middle |
| $D$. Telocentric | $IV$. Slightly away from the middle |
Statement $I$:The primary $CO _{2}$ acceptor in $C _{4}$ plants is phosphoenolpyruvate and is found in the mesophyll cells.
Statement $II:$Mesophyll cells of $C _{4}$ plants lack RuBisCo enzyme.
In the light of the above statements, choose the correct answer from the options given below:
$(i)$. Genus comprises a group of related species.
$(ii)$. Taxon represents a taxonomic group of individual organisms.
$(iii)$. Family comprises a group of related genera.
$(iv)$. Taxonomic category class includes related orders.