Stenohaline organisms can (1) can only adapt to a narrow range of salinities (2) can adapt to a wide range of salinities, (3) can excrete extra salt to keep salt […]
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
Benthic Organisms in Lakes and Seas: Are They Producers, Herbivores, Carnivores, or Decomposers
Benthic organism of lakes or sea are usually- (1) Producer (2) Herbivores (3) Carnivores (4) Decomposers Benthic Organisms in Lakes and Seas: Are They Producers, Herbivores, Carnivores, or Decomposers? […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Limiting Factor for Primary Production in the Open Sea: Why Low Nutrients Matter Most
Limiting factor for primary production in open sea is (1) Constant tides (2) Low nutrients (3) High salinity (4) High temperature Limiting Factor for Primary Production in the Open Sea: […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Is the Nature of Soil Under Naturally Growing Vegetation? Understanding Soil pH and Its Causes
Soil in naturally growing vegetation is- (1) Acidic due to decomposition of organic matter (2) Basic due to Bicarbonate in soil (3) Neutral due to silicate buffer (4) Acidic due […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which of the Following Are Abiotic Factors? Detailed Explanation with Examples
Which of the following are abiotic factors? (1) temperature, rain fall, pH, Nutrients (2) temperature, rain fall, pH, Food (3) temperature, rain fall, Pathogens (4) temperature, rain fall, pH, viruses […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Role of Aspartate as a Precursor in Key Biosynthetic Processes
Aspartate (Asp) is an amino acid with the structure NH2 – CH(CH2 — COOH) — COOH. Given below are biosynthetic processes occurring in cells: A. protein synthesis B. de novo […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Catabolic End Product of Purines: Understanding Uric Acid Metabolism in Humans
Catabolic end product of purines is (1) Xyloric acid (2) Allantoin (3) Urea (4) Uric acid Purines are vital nitrogen-containing compounds that form the building blocks of nucleic acids—DNA and […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Hypoxanthine Base Pairing Preferences in DNA: Understanding Its Pairing Order
The pathway for de novo biosynthesis of purine nucleotides involves the production of inosine monophosphate (IMP) that serves as a precursor for AMP and GMP synthesis. IMP has the base […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding De Novo Nucleotide Biosynthesis: Identifying the Incorrect Statement
Purine and pyrimidine nucleotides serve as monomeric units of the nucleic acid polymers DNA and RNA. Mentioned below are some of the statements with respect to the de novo synthesis […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Detailed Atom Source Mapping in Purine Biosynthesis: Nitrogen and Carbon Origins Explained
In the biosynthesis of purine: (1) All N atoms, C4 and C5 from Aspartic acid (2) N1 is from aspartic acid; N3 and N9 are from Glutamine side- chain; N7, […]
