List of top Questions asked in NEET (UG)- 2026

Match List I with List II \begin{table}[h] \centering \begin{tabular}{|c|l|c|l|} \hline \multicolumn{2}{|c|}{List I (Drug)} & \multicolumn{2}{c|}{List II (Effect)}
\hline A & Nicotine & I & Causes sense of euphoria and increased energy
B & Morphine & II & Stimulates adrenal gland to release catecholamines into blood circulation
C & Heroin & III & Effective sedative and painkiller
D & Cocaine & IV & A depressant, slows down body function
\hline \end{tabular} \end{table} Choose the correct answer from the options given below:

Select the incorrect statements with reference to Rh grouping.
A. Erythroblastosis foetalis is a condition observed having foetus with $Rh^{-ve$ blood and mother with $Rh^{+ve}$ blood.
B. Rh antigen is observed on RBCs in the majority of human beings.
C. Before blood transfusion, Rh group should also be matched.
D. Rh incompatibility is observed when a pregnant mother is $Rh^{-ve}$ and the foetus is $Rh^{+ve}$.
E. Erythroblastosis foetalis can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the second child.
Choose the answer from the options given below:}

The human protein named $\alpha$-1-antitrypsin, obtained from transgenic animals, is used for the treatment of ________.

Which of the following statements are correct with reference to human endoskeleton?
A. Human skull is monocondylic.
B. The joint between any two adjoining vertebrae is a cartilaginous joint.
C. In human beings, the number of cervical vertebrae is seven.
D. All ribs except the last 2 pairs are bicephalic.
E. The occipital bone of skull is articulated with atlas vertebra.
Choose the correct answer from the options given below:

The specific receptors for neurotransmitters in a synapse are present on ________.

Insertion of a foreign DNA at BamHI site in an E. coli cloning vector pBR322 results in the loss of antibiotic resistance towards:

Choose the correct statements regarding muscle contraction.
A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre.
B. The neural signal generates an action potential which causes the release of $Ca^{++$ into sarcoplasm.
C. Increase in $Ca^{++}$ inactivates the actin for breaking cross bridges.
D. Actin binds to the myosin head to form a cross bridge.
E. Shortening of sarcomere takes place, by pulling actin filaments towards the centre of 'A' band.
Choose the correct answer from the options given below:}

Choose the correct statement regarding GIFT to overcome infertility.

Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are:

In humans, respiration occurs in the following steps. Arrange these steps in the correct order.
A. Diffusion of $O_2$ and $CO_2$ between blood and tissues
B. Diffusion of $O_2$ and $CO_2$ across alveolar membrane
C. Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ rich alveolar air is released out
D. Cellular respiration
E. Transport of gases by the blood
Choose the correct answer from the options given below:

A group of researchers procured some fish-like animals and upon investigation the following characters were observed:
A. Endoskeleton was made of cartilage.
B. Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth.
C. Paired fins and scales are absent, but 7 pairs of gill slits were present.
Which of the following species of animals did they consider to fit best with these characters?

Male frogs can be distinguished from female frogs due to the presence of:
A. Bulging eyes
B. Vocal sacs
C. Webbed digits in feet
D. Copulatory pad on first digit of fore limbs
E. Olive green-coloured skin with dark irregular spots
Choose the correct answer from the options given below:

The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as:

Choose the correct statements regarding frog's anatomy.
A. Hepatic portal system is the special venous connection between liver and intestine.
B. There are twelve pairs of cranial nerves arising from the brain.
C. The ureters and oviducts open separately into the cloaca in female frogs.
D. Hind-brain consists of cerebellum, medulla oblongata and optic lobes.
E. Sinus venosus joins the right atrium of heart.
Choose the correct answer from the options given below:

Match List I with List II : \begin{center} \begin{tabular}{ll} List I (Placentation) & List II (Example)
A. Marginal & I. Mustard
B. Axile & II. Pea
C. Parietal & III. Marigold
D. Basal & IV. Lemon
\end{tabular} \end{center} Choose the correct answer from the options given below :

Match List I with List II : \begin{center} \begin{tabular}{ll} List I & List II
A. Productivity & I. Gross primary productivity minus respiration losses
B. Net primary productivity & II. Rate of formation of new organic matter by consumers
C. Gross primary productivity & III. Rate of biomass production
D. Secondary productivity & IV. Rate of production of organic matter during photosynthesis
\end{tabular} \end{center} Choose the correct answer from the options given below :

Alpha-helix is found in which level of protein structure ?

Which of the following statements are correct with respect to DNA separation, isolation and visualization ?
A. The cutting of DNA is done by molecular scissors.
B. The DNA fragments separate according to their size in an agarose gel, upon electrophoresis.
C. The separated DNA fragments can be seen without staining when exposed to UV light.
D. The separated DNA fragments, when stained with ethidium bromide, can be seen in visible light. Choose the correct answer from the options given below :

Which of the following statements are correct with reference to packaging of DNA helix?
A. Histones are organized to form a unit of eight molecules called histone octamer.
B. Histones are negatively charged basic proteins.
C. Histones are rich in the basic amino acid residues – lysine and arginine.
D. The positively charged DNA is wrapped around the histone octamer to form nucleosome.
E. The packaging of chromatin at higher levels requires an additional set of proteins called non-histone chromosomal proteins. Choose the correct answer from the options given below :

Which of the following floral formula is the correct floral formula of Solanaceae family ?

Which one of the following is not a characteristic of plant cells in the phase of elongation ?

In angiosperms, root hairs arise from which one of the following regions of the root ?

Identify the correct statements about biomolecules. A. Lipids are generally water soluble. B. Proteins are polypeptides. C. Polysaccharides are long chains of sugars. D. Adenine and guanine are substituted pyrimidines. E. Almost all enzymes are proteins. Choose the correct answer from the options given below :

Match List I with List II : \begin{center} \begin{tabular}{ll} List I & List II
A. Decomposition & I. Accumulation of dark coloured amorphous colloidal substance
B. Detritus & II. Release of inorganic nutrients by the activity of microbes in soil
C. Mineralisation & III. Breaking down of complex organic matter into inorganic substances
D. Humification & IV. Dead remains of plants and animals including fecal matter
\end{tabular} \end{center} Choose the correct answer from the options given below :

Exploring molecular, genetic and species-level diversity for products of economic importance is called :