List of top Questions asked in TS EAMCET- 2026

Study the following and choose the correct statements.

• Cumulative effect of two or more genes on a single phenotypic trait is known as polygenic inheritance.
• Karyotype of Turner syndrome is AA+XXY.
• The longest gene codes for the muscle protein dystrophin.
• Highest number of genes are located in 21st chromosome.
The electric potential at a region in terms of the coordinates \((x,y,z)\) in metre is

\[ V(x,y,z)=\left(10-3x^2-y^2-1.5z^2\right)\times10^6\ \text{V}. \]
The magnitude of the electric force acting on a charge of \(2\,\mu\text{C}\) placed at the point \((1,1,3)\,\text{cm}\) is

Match the following. 
\[ \begin{array}{|c|l|c|l|} \hline \text{Excretory organs} & & \text{Examples} & \\ \hline \text{A} & \text{Protonephridia} & \text{I} & \text{Terrestrial arthropods} \\ \hline \text{B} & \text{Metanephridia} & \text{II} & \text{Crustaceans} \\ \hline \text{C} & \text{Malpighian tubules} & \text{III} & \text{Larva of annelids} \\ \hline \text{D} & \text{Green glands} & \text{IV} & \text{Cnidarians} \\ \hline & & \text{V} & \text{Annelids} \\ \hline \end{array} \]

Match the following. 
\[ \begin{array}{|c|l|c|l|} \hline \text{Hormone} & & \text{Endocrine gland} & \\ \hline \text{A} & \text{Vasopressin} & \text{I} & \text{Duodenum} \\ \hline \text{B} & \text{Aldosterone} & \text{II} & \text{Pituitary gland} \\ \hline \text{C} & \text{Secretin} & \text{III} & \text{Adrenal gland} \\ \hline \text{D} & \text{Calcitonin} & \text{IV} & \text{Thyroid gland} \\ \hline & & \text{V} & \text{Thymus gland} \\ \hline \end{array} \]

Match the following. 
\[ \begin{array}{|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & \\ \hline \text{A} & \text{Coitus interruptus} & \text{I} & \text{Barrier method} \\ \hline \text{B} & \text{Diaphragms} & \text{II} & \text{IUD} \\ \hline \text{C} & \text{Progestasert} & \text{III} & \text{DMPA} \\ \hline \text{D} & \text{Saheli} & \text{IV} & \text{Natural method} \\ \hline & & \text{V} & \text{Contraceptive oral pill} \\ \hline \end{array} \]

Trisomy of 23rd chromosome in male results in

Match the following. 
\[ \begin{array}{|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & \\ \hline \text{A} & \text{Prontosil} & \text{I} & \mathrm{-SO_2NH-} \\ \hline \text{B} & \text{Sulphapyridine} & \text{II} & \mathrm{-NHCOCHCl-} \\ \hline \text{C} & \text{Salvarsan} & \text{III} & \mathrm{-N=N-} \\ \hline & & \text{IV} & \mathrm{-As=As-} \\ \hline \end{array} \] 
The correct answer is

Match the following.

\[ \begin{array}{|c|c|c|c|} \hline \text{List-I} & \text{Atomic number} & \text{List-II} & \text{Group} \\ \hline \text{A} & 53 & \text{I} & 16 \\ \hline \text{B} & 34 & \text{II} & 2 \\ \hline \text{C} & 38 & \text{III} & 17 \\ \hline \text{D} & 49 & \text{IV} & 13 \\ \hline & & \text{V} & 7 \\ \hline \end{array} \]
The correct answer is
Which of the following pairs contain isostructural species? \[ \begin{aligned} \text{I. } & \mathrm{H_3PO_3,\ H_2SO_4} \\ \text{II. } & \mathrm{SO_3,\ BF_3} \\ \text{III. } & \mathrm{O_3,\ NO_2^-} \end{aligned} \] The correct answer is
At \(T(\mathrm{K})\), decomposition of \(A(g)\) follows first order kinetics.

\[ A(g) \rightarrow B(g) + C(g) \]
The following data is obtained for this reaction.

\[ \begin{array}{|c|c|} \hline \text{Time (s)} & \text{Total pressure (atm)} \\ \hline 0 & 0.5 \\ \hline 100 & 0.6 \\ \hline \end{array} \]
What is the rate constant (in \(\mathrm{s^{-1}}\)) for this reaction?

\[ \left(\log 1.25 = 0.097,\; \log 1.666 = 0.222\right) \]
Match the following.

\[ \begin{array}{|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & \\ \hline \text{A} & \text{Cottrell precipitator} & \text{I} & \text{Antimony colloid} \\ \hline \text{B} & \text{Kalaazar} & \text{II} & \text{Curd} \\ \hline \text{C} & \text{Lactobacilli} & \text{III} & \text{Drinking water} \\ \hline \text{D} & \text{Alum} & \text{IV} & \text{Smoke} \\ \hline \end{array} \]
The correct answer is
Which of the following reactions gives oxide of nitrogen which is in solid state and acidic in nature? \[ \begin{aligned} \text{I. }&\mathrm{NH_4NO_3}\xrightarrow{\Delta} \\ \text{II. }& 2\mathrm{Pb(NO_3)_2}\xrightarrow{\Delta} \\ \text{III. }&\mathrm{P_4O_{10}+4HNO_3}\rightarrow \\ \text{IV. }& 2\mathrm{NO}+\mathrm{N_2O_4}\xrightarrow[250\,K]{} \end{aligned} \] The correct answer is
The reactions which produce \(\mathrm{O_2}\) are \[ \begin{aligned} \text{I. }& 2\mathrm{KClO_3}\\ \xrightarrow[\mathrm{MnO_2}]{\Delta} \\ \text{II. }& 2\mathrm{KMnO_4}\\ \xrightarrow{\Delta} \\ \text{III. }&(\mathrm{NH_4})_2\mathrm{Cr_2O_7} \xrightarrow{\Delta} \end{aligned} \] The correct answer is
Which of the following oxidation reactions of \(\mathrm{KMnO_4}\) occur in acidic medium? \[ \begin{aligned} \text{I. }&\text{Oxidation of oxalic acid} \\ \text{II. }&\text{Oxidation of iodide to iodate} \\ \text{III. }&\text{Precipitation of sulphur from hydrogen sulphide} \end{aligned} \] The correct answer is
Choose the incorrect pair.

\[ \begin{array}{|c|l|l|} \hline \text{Element} & & \text{Role} \\ \hline \text{A} & \text{Zinc} & \text{Auxin synthesis} \\ \hline \text{B} & \text{Nickel} & \text{Activator of urease} \\ \hline \text{C} & \text{Molybdenum} & \text{Component of nitrogenase} \\ \hline \text{D} & \text{Manganese} & \text{Activator of catalase} \\ \hline \end{array} \]
Identify the correct statements related to the class Phaeophyceae. \[ \begin{aligned} A. &\text{Asexual reproduction occurs usually by biflagellate zoospores}\\ B. &\text{Sexual reproduction is by oogamous method only}\\ C. &\text{Food is stored as simple carbohydrates in the form of mannitol or laminarin}\\ D. &\text{Major pigments are chlorophyll }a,c,\text{ xanthophylls and carotenoids}\\ E. &\text{Cellulose cell wall has outer gelatinous coating of algin} \end{aligned} \] The correct answer is (any three)
Zygote is diploid in which life cycle? \[ \begin{aligned} I. &\text{Haplontic}\\ II. &\text{Diplontic}\\ III. &\text{Haplodiplontic}\\ IV. &\text{Diplohaplontic} \end{aligned} \] The correct answer is (and = all, only = only)
From the following lists, choose the correct combinations.

\[ \begin{array}{|c|l|l|l|} \hline & \text{List-I (Substrate)} & \text{List-II (Enzyme)} & \text{List-III (Product)} \\ \hline \text{I} & \text{PGA + ATP} & \text{Phosphoglycerokinase} & \text{Bis PGA} \\ \hline \text{II} & \text{Bis PGA + NADPH} & \text{G-3-P dehydrogenase} & \text{G-3-P} \\ \hline \text{III} & \text{Xylulose} & \text{Epimerase} & \text{Ribulose} \\ \hline \text{IV} & \text{Fructose + G-3-P} & \text{Transketolase} & \text{Xylulose} \\ \hline \end{array} \]
The correct answer is (and = all, only = only)
Choose the incorrect pair (and = all, only = only).

\[ \begin{array}{|c|l|l|} \hline & \text{List-I} & \text{List-II} \\ \hline \text{A} & \text{Frankel Conrat} & \text{Genetic nature of DNA} \\ \hline \text{B} & \text{Bessey} & \text{Phylogenic classification} \\ \hline \text{C} & \text{Buchner} & \text{Zymase} \\ \hline \text{D} & \text{Sumner} & \text{Catalase} \\ \hline \end{array} \]
Choose the incorrect pair (and = all, only = only).

\[ \begin{array}{|c|l|l|l|} \hline & \text{Type of fruit} & \text{Example} & \text{Character} \\ \hline \text{A} & \text{Pepo} & \text{Cucumber} & \text{Develops from inferior ovary} \\ \hline \text{B} & \text{Legume} & \textit{Pisum} & \text{Dehisce ventrally} \\ \hline \text{C} & \text{Caryopsis} & \textit{Oryza} & \text{Pericarp and seed coat are unfused} \\ \hline \text{D} & \text{Sorosis} & \text{Pineapple} & \text{Inflorescence develops into fruit} \\ \hline \end{array} \]
In which parts of the plants of Dioscorea and Agave, the food material is stored?

\[ \begin{array}{|c|l|l|} \hline & \textit{Dioscorea} & \textit{Agave} \\ \hline \text{I} & \text{Floral buds} & \text{Tap root} \\ \hline \text{II} & \text{Subaerial stem} & \text{Floral buds} \\ \hline \text{III} & \text{Underground stem} & \text{Vegetative buds} \\ \hline \text{IV} & \text{Vegetative buds} & \text{Floral buds} \\ \hline \end{array} \]
Which of the following statements are correct? \[ \begin{aligned} I. &\text{Inflorescence in Carrot is Umbel}\\ II. &\text{Male flowers of Ficus have three stamens}\\ III. &\text{Pneumatophores of Rhizophora are positively geotropic}\\ IV. &\text{Axillary bud develops into tendril in Grapevine} \end{aligned} \] The correct answer is (and = all, only = only)
Match the following.

\[ \begin{array}{|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & \\ \hline A & \text{Dehydrogenases} & \text{I} & \text{Elimination of groups to form a double bond} \\ \hline B & \text{Transferases} & \text{II} & \mathrm{CO_2 + H_2O \rightarrow H_2CO_3} \\ \hline C & \text{Lyases} & \text{III} & \mathrm{S\text{-}G + S' \rightarrow S + S'\text{-}G} \\ \hline D & \text{Carbonic anhydrase} & \text{IV} & \text{Oxidation--reduction reaction} \\ \hline \end{array} \]
Which of the following restriction sites are present in amp\(^{R}\) gene of plasmid pBR322? (and = all, only = only)

\[ \begin{aligned} \text{A.} \;& \text{Pvu I} \\ \text{B.} \;& \text{Pst I} \\ \text{C.} \;& \text{BamH I} \\ \text{D.} \;& \text{Sal I} \end{aligned} \]
Match the following.

\[ \begin{array}{|c|l|c|l|c|l|} \hline \text{List-I} & & \text{List-II} & & \text{List-III} & \\ \hline \text{I} & \text{Manganese} & \text{A} & \text{Helps in anion-cation balance} & \text{P} & \text{Brown spots with chlorotic veins} \\ \hline \text{II} & \text{Zinc} & \text{B} & \text{Uptake and } Ca^{++}\text{ utilization} & \text{Q} & \text{Mottled leaf disease} \\ \hline \text{III} & \text{Boron} & \text{C} & \text{Needed for auxin synthesis} & \text{R} & \text{Heart-rot in beets} \\ \hline \text{IV} & \text{Chlorine} & \text{D} & \text{Activation of IAA oxidase} & \text{S} & \text{Bronzing in legumes} \\ \hline \end{array} \]