The question asks for the reason behind indeterminate growth in plants, which is due to the presence of certain tissues. The options provided are:
Let's analyze each of the options:
From the explanations above, it is clear that the correct answer is:
Meristems are vital for the growth of plants because they contain permanently undifferentiated cells that continue to divide and produce new cells throughout the life of the plant, leading to indeterminate growth.
Identify the taxa that constitute a paraphyletic group in the given phylogenetic tree.
The vector, shown in the figure, has promoter and RBS sequences in the 300 bp region between the restriction sites for enzymes X and Y. There are no other sites for X and Y in the vector. The promoter is directed towards the Y site. The insert containing only an ORF provides 3 fragments after digestion with both enzymes X and Y. The ORF is cloned in the correct orientation in the vector using the single restriction enzyme Y. The size of the largest fragment of the recombinant plasmid expressing the ORF upon digestion with enzyme X is ........... bp. (answer in integer) 