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Exams

CBSE Class XII
CUET (PG)
NEET (PG)

Subjects

Biochemistry
Biology

Topics

DNA Structure
Amine metabolism - trimethylaminuria
Amino Acids
Amino acid chemical reactions and tests
Amino acid chemistry and coagulation proteins
Amino acid metabolism
Amino acid metabolism (transamination, PLP/Vitamin B6)
Amino acid metabolism - tyrosine catabolism disorders
Amino acid properties and UV absorption
Amino acid transport - Cystinuria
Aminoacidopathies
Antibody structure, function and diversity
Antioxidants and vitamins
Bilirubin metabolism
Biochemical Techniques
Biochemistry
Bioenergetics and Membrane Biology
Biomolecules
Bioorganic Chemistry and Metabolites
Cancer
Carbohydrate chemistry - aldose vs ketose
Carbohydrate metabolism
Carbohydrates
Carbohydrates
Cardiac biomarkers / LDH isoenzymes
Catecholamine synthesis
Cell Biology
Cell organelles - peroxisome biogenesis disorders
Chemical bonds and molecular interactions
Cholesterol metabolism and gallstones
Clinical Biochemistry
Collagen types and distribution
Concepts and regulation of metabolism of amino acids
Copper metabolism and collagen cross-linking
Covalent regulation of glycogen metabolism (phosphorylation/dephosphorylation)
DNA Repair / Xeroderma Pigmentosum
DNA Replication
DNA damage and repair (UV-induced pyrimidine dimers)
Dietary fiber
Electron transport chain inhibitors
Enzyme inhibition
Enzyme kinetics
Enzymes
Enzymes - protease classification
Enzymology
Fat-soluble vitamins
G6PD deficiency genetics / X-linked inheritance
GLUT4 transporter and exercise in type 2 diabetes
Galactosemia
Gene expression
Genetic Engineering and Biotechnology
Genetics
Gluconeogenesis
Gluconeogenesis and blood glucose regulation
Glucose homeostasis and hypoglycemia
Glucose transporters
Glycolysis
Glycolysis - phosphofructokinase cofactor
Glycosaminoglycans and Proteoglycans
HDL function
Homocystinuria
Hormones
Human Endocrine System
Human physiology
Immunology
Inborn errors of metabolism - urine odours
Insulin biosynthesis - proinsulin and C-peptide
Ion-exchange chromatography
Iron metabolism
LDH isoenzymes and cardiac markers
Laboratory techniques (IHC vs FISH/western blot/flow cytometry)
Lipid Metabolism and Hyperlipoproteinemias
Lipid absorption
Lipid metabolism - fatty acid synthesis
Lipids
Lipoprotein electrophoresis
Lipoprotein metabolism / hypertriglyceridemia
Liver enzyme location: AST
Lysosomal storage disorders
Maple syrup urine disease
Metabolic pathways and their regulation
Metabolic syndrome
Metabolism
Microbiology
Molecular Biology
Molecular biology - DNA replication enzymes
Monoamine neurotransmitters - serotonin
Monoclonal antibody and cell fusion
Nucleic acid chemistry (bases, nucleosides, nucleotides)
Nutrition
Nutritional Deficiencies
Pentose phosphate pathway
Plasma proteins - Alpha-1 antitrypsin and elastase inhibition
Plasma proteins and liver function
Polymerase chain reaction
Prenatal diagnosis of hemophilia
Protein degradation
Protein structure
Protein structure - chaperones and folding
Proteins
Purine metabolism - salvage pathway defects
Purine nucleotide biosynthesis
RNA catalysis and ribozymes
Recombinant DNA technology and applications
Reducing vs non-reducing sugars (Benedict's test)
Regulation of major metabolic pathways
Rothera's test for ketones
Sphingolipidoses
Structure Of Proteins
TCA cycle
Trinucleotide repeat disorders
Urea cycle and TCA cycle linkage
Urea cycle defects and hyperammonaemia
Urine sugar detection tests
Vitamin K and clotting factors
Vitamin deficiencies
Vitamins
Vitamins - Niacin Deficiency and Pellagra
Vitamins and Coenzymes
Vitamins and Nutrition
Wilson's Disease

List of top Biochemistry Questions on DNA Structure

Assertion (A): The two strands of DNA are complementary to each other.
Reason (R): The hydrogen bonds are formed between specific pairs of bases.

CBSE Class XII - 2026
CBSE Class XII
Biochemistry
DNA Structure

Why the absorption of UV light by double stranded DNA increases (hyperchromic effect) when the DNA is denatured?

CUET (PG) - 2026
CUET (PG)
Biochemistry
DNA Structure

In a sample of double-stranded DNA, if adenine is 28 percent, what is the amount of cytosine present?

NEET (PG) - 2020
NEET (PG)
Biochemistry
DNA Structure

A nucleotide consists of all of the following except?

NEET (PG) - 2012
NEET (PG)
Biochemistry
DNA Structure

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