Which one of the following does NOT belong to the freshwater ecosystem?
- Estuary
- Lentic
- Lotic
- Wetland
The Correct Option is A
Solution and Explanation
Top Questions on Ecosystem
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A young forest, a natural old forest, a shallow polluted lake. - Differentiate between Net primary productivity and Gross primary productivity in an ecosystem.
- The process of mineralization by microorganisms helps in the release of:
- Why are restrictions imposed on MTP in India? Up to how many weeks or trimesters, is MTP considered relatively safe for a female, if necessary to perform, by a medical practitioner?
Read the passage given below and answer the question.
Food chains ‘P’ and ‘Q’ form an interconnection. ‘P’ initiates with wheat grass whose population supports a few grasshoppers, frogs and snakes.
‘Q’ starts with dead decaying leaves of wheat grass which are eaten by earthworms and then food chain is continued with frog of food chain ‘P’.
Identify the types of food chains ‘P’ and ‘Q’:
Questions Asked in IIT JAM BT exam
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)
- IIT JAM BT - 2025
- Biotechnology
- Match the animals in Group I with the major form of excreted nitrogen metabolite in Group II. \[ \begin{array}{c|c} \text{Group I} & \text{Group II} \\ \hline P:\; \text{Bony fishes} & 3:\; \text{Ammonia} \\ Q:\; \text{Lions} & 1:\; \text{Urea} \\ R:\; \text{Birds} & 2:\; \text{Uric acid} \\ \end{array} \]
- IIT JAM BT - 2025
- Metabolism
Identify the taxa that constitute a paraphyletic group in the given phylogenetic tree.
- IIT JAM BT - 2025
- Genetics
- Which of the following condition(s) lead(s) to reduced affinity of O2 for human hemoglobin?
- IIT JAM BT - 2025
- Biotechnology
Which of the following is/are CORRECT for the two molecules shown?
- IIT JAM BT - 2025
- Biotechnology