NEET Mock Test-2 Questions

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Crossing over during meiosis is an enzyme-mediated process. Reason (R): The enzyme recombinase leads to recombination of genetic

Choose the correct statements regarding post-transcriptional events in eukaryotes. A. Tailing of hnRNA occurs at the 3'-end. B. During splicing, introns are removed and exons are joined. C. Functional mRNA is transported from the cytoplasm to the nuc

Select the correct statement about the endomembrane system.

How many of the following show isogamous reproduction? A. Volvox B. Spirogyra C. Fucus D. Ulothrix E. Gelidium Choose the correct option.

Identify the correct physiological effect of gibberellins in plants.

The introduction of the African catfish Clarias gariepinus for aquaculture purposes is posing a threat to indigenous catfishes in our rivers. This is an example of:

Both chasmogamous and cleistogamous flowers are produced by all the following, except;

The stroma of chloroplast contains all the following, except;

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The placentation in members of family Malvaceae is said to be axile. Reason (R): A false septum is characteristic of ovary in mem

During a meiotic cell cycle, a dyad of haploid cells is formed;

The vascular bundle shown below is said to be;

Select the correct statements regarding an ecosystem. A. Identification and enumeration of plant species of an ecosystem gives its stratification. B. Vertical distribution of different species occupying different levels is called species composition.

Given below are two statements: Statement I: Griffith, in his experiments, observed transformation of a virulent strain to non-virulent strain of pneumococcus. Statement II: The Central dogma in molecular biology states that the genetic information f

The type of population interaction between cuckoo and crow is;

Which of the following correctly describes a taxonomic category?

Match List-I with List-II w.r.t the lac operon. List-I (Gene) A. y B. a C. i D. z List-II (Product) I. Repressor II. β-galactosidase III. Transacetylase IV. Permease Choose the most appropriate answer from the options given below.

Which of the following sets of reactions occurs during the light reactions of photosynthesis?

During cell cycle, DNA replicates in one of the sub-stages of the;

The growth rate is measured in terms of increase in cell number, for;

Females are diploid but males are haploid, in case of;

Identify the incorrectly matched pair.

In a maize grain, the aleurone layer;

Who amongst the following studied the effect of hard X-rays on bacteriophage multiplication?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): A population growing in a habitat with limited resources shows an S-shaped growth curve. Reason (R): A population growing in a ha

Given below are two statements: Statement I: The early stages of embryo development (embryogeny) are vastly different in monocotyledons and dicotyledons. Statement II: In dicot plants, the zygote gives rise to the proembryo and subsequently to the gl

An example of pleiotropy is;

Match List-I with List-II. List-I (Kingdom) A. Monera B. Protista C. Fungi D. Plantae List-II (General characteristic of members) I. Unicellular eukaryotic II. Multicellular autotrophic III. Unicellular prokaryotic IV. Multicellular heterotrophic Cho

For the synthesis of fatty acids, which of the following will be withdrawn from the respiratory pathway?

With respect to treatment of sewage water, arrange the following steps in correct sequence. A. Effluent from the primary settling tank is taken for secondary treatment. B. Production of biogas. C. Using activated sludge as inoculum in aeration tank.

Among SbF5, PCl5, BrF5 and XeOF4, which species show octahedral electron-pair arrangement around the central atom?

Identify the incorrect statements regarding group 15 elements: A. Dinitrogen is a diatomic gas which acts like an inert gas at room temperature. B. The common oxidation states of these elements are –3, +3 and +5. C. Nitrogen has unique ability to for

The carbohydrate unit associated with DNA is asked about through these statements: A. It is a pentose sugar B. It is present in pyranose form C. It is in “D” configuration D. When free, it behaves as a reducing sugar E. It is in α-anomeric form

Among the following, which compound contains a –COOH group?

Identify major product "X" formed in the following reaction:

Given below are two statements: Statement I: Along a period, the chemical reactivity of elements increases uniformly from group 1 to group 18. Statement II: Oxides of group 1 elements are generally basic, whereas oxides of many group 17 elements are

The semicarbazone formed from acetone contains how many nitrogen atoms?

For elements B, C, N, Li, Be, O and F, the correct order of first ionization enthalpy is:

The mass of ammonia in grams produced when 2.8 kg of dinitrogen quantitatively reacts with 0.8 kg of dihydrogen is:

On boiling egg white, which protein structure is destroyed first among the following, while peptide sequence remains unchanged?

For SO2, NO2– and N3–, identify the species in which the central atom is sp-hybridized:

For p-toluenesulphonyl chloride, which product is soluble in alkali during Hinsberg test?

Using the same substituents, identify the incorrect statement(s): (A) –OH is ortho-para directing. (B) –CN is meta directing. (C) Halides are deactivating but ortho-para directing. (D) –SO3H is ortho-para directing.

The product “A” in the above reaction is:

Match List-I with List-II for preparation of benzaldehyde. List-I (A) Benzene (B) Benzonitrile (C) Benzoyl chloride (D) Toluene List-II (I) HCl and SnCl2, H3O+ (II) H2, Pd-BaSO4, S and quinoline (III) CO, HCl and AlCl3 (IV) CrO2Cl2/H+

Which of the following have the same number of significant figures? (A) 0.0064 (B) 4.002 (C) 18.0 (D) 243

In the following sequence of reactions, the P is:

The correct reaction profile diagram for a negative catalyst reaction.

Examine the compound below. How many stereoisomers having this constitution are possible?

Vapour pressure of a solution containing 9 g non-volatile solute in 90 g water is 36 Torr. On adding 1 mole water, vapour pressure increases by 3 Torr. Vapour pressure of pure water is:

Which of the following oxides is basic in nature?