AIPMT 2006 Mock Test

What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids ?

Pineapple (annanas) fruit develops from:

Golden rice is a promising transgenic crop. When released for cultivation, it will help in:

Parthenocarpic tomato fruits can be produced by:

How does pruning help in making the hedge dense?

The 'blue baby' syndrome results from:

Praying mantis is a good example of:

Which one of the following statements is correct?

Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin. Supplementing his diet with which of the following, is likely to alleviate his symptoms?

Farmers in a particular region were concerned that premature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?

In which of the following fruits is the edible part the aril?

Which one of the following amino acids was not found to be synthesized in Miller’s experiment?

Crop plants grown in monoculture are

Montreal protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year:

The formula for exponential population growth is :

Which one of the following is not used for construction of ecological pyramids ?

Niche overlap indicates

In photosystem-I, the first electron acceptor is:

Treatment of seed at low temperature under moist conditions to break its dormancy is called :

Which one of the following is the most suitable, medium for culture of Drosophila melanogaster?

Which one of the following is not included under in situ conservation?

Which antibiotic inhibits the interaction between t-RNA and m-RNA using bacterial protein synthesis?

Phenotype of an organism is the result of:

Photochemical smog pollution does not contain:

Moss peat is used as a packing material for sending flowers and live plants to distant places because:

A common structural feature of vessel elements and sieve tube elements is :

The thalloid body of a slime mould (Myxomycetes) is known as :

In which mode of inheritance do you expect more maternal influence among the offspring?

What type of placentation is seen in sweet pea ?

Long filamentous threads protruding at the end of a young cob of maize are:

Conifers differ from grasses in the:

How many different kinds of gametes will be produced by a plant having the genotype AABbCC?

In maize, hybrid vigour is exploited by :

Which of the following statements regarding mitochondrial membrane is not correct ?

Amino acid sequence, in protein synthesis is decided by the sequence of:

How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to ${\text{CO}}_2$ and ${\text{H}}_2\text{O}$ yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal?

An organic substance bound to an enzyme and essential for its activity is called:

Bowman’s glands are found in:

The bacterium (Clostridium botulinum) that causes botulism is:

Which one of the following is the correctly matched pair of an endangered animal and a National Park?

A person showing upredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from :

Sulphur is an important nutrient for optimum growth and productivity in :

Pentamerous, actinomorphic flowers, bicarpillary ovary with oblique septa, and fruit a capsule or berry, are characteristic features of:

In a moss the sporophyte:

Curing of tea leaves is brought by the activity of:

People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 meters have around 8 million. This is because at high altitude

An important evidence in favour of organic evolution is the occurrence of:

Which one of the following is not a living fossil?

Annual migration does not occur in the case of:

A major breakthrough in the studies of cells came with the development of electron microscope. This is because:

Which one of the following is a matching set of a phylum and its three examples?

Metameric segmentation is the characteristic of :

Which of the following pairs of an animal and a plant represents endangered organisms in India ?

Jurassic period of the Mesozoic era is characterised by:

What is common about Trypanosoma, Noctiluca, Monocystis and Giardia?

Which of the following statements regarding cilia is not correct?

Microbes found to be very useful in genetic engineering are:

Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread ?A) The temperature of about $25^{\circ }\text{C}$ B) The temperature of about $5^{\circ }\text{C}$ C) Relative humidity of about $5\%$ D) Relative humidity of about $95\%$ E) A shady placeF) A brightly illuminated placeChoose the answer from the following options:

Evolutionary history of an organism is known as:

Which of the following is considered a hot-spot of biodiversity in India?

During photorespiration, the oxygen consuming reaction(s) occur in:

Which one of the following is an example of polygenic inheritance?

Which one of the following does not act as a neurotransmitter ?

Sertoli cells are regulated by the pituitary hormone known as :

A steroid hormone which regulates glucose metabolism is :

The contractile protein of skeletal muscle involving ATPase activity is :

Which one of the following is not a second messenger in hormone action ?

In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the ${\text{F}}_2$ generation of the cross RRYY x rryy ?

One gene – one enzyme hypothesis was postulated by:

One turn of the helix in a B-form DNA is approximately:

Test cross involves:

Antiparallel strands of a DNA molecule means that:

Areolar connective tissue joins :

Mast cells secrete:

If a colourblind woman marries a normal visioned man, their sons will be :

Cri-du-chat syndrome in humans is caused by the :

Restriction endonuclease:

Antibodies in our body are complex:

Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal wastewater into natural surface water is

Earthworms are:

Which of the following is an accumulation and release centre of neurohormones?

Withdrawal of which of the following hormones is the immediate cause of menstruation ?

Which one of the following statements is incorrect?

Which one of the following has an open circulatory system?

Which hormone causes dilation of blood vessels, increased oxygen consumption and gluco-genesis?

The causative agent of mad-cow disease is a:

The translocation of organic solutes in sieve tube members is supported by:

Biradial symmetry and lack of cnidoblasts are the characteristics of:

The arrangement of the nuclei in a normal embryo sac in the dicot plants is:

An enzyme that can stimulate germination of barley seeds is:

In a cereal grain the single cotyledon of embryo is represented by :

The majority of carbon dioxide produced by our body cells is transported to the lungs :

Triticale, the first man-made cereal crop, has been obtained by crossing wheat with:

In order to obtain virus-free plants through tissue culture the best method is :

HIV that causes AIDS, first starts destroying:

In which one of the following sets of animals do all the four give birth to young ones?

Sickle cell anaemia has not been eliminated from the African population because:

Two common characters found in centipede, cockroach and crab are:

Both sickle cell anaemia and Huntington’s chorea are:

Angiotensinogen is a protein produced and secreted by:

Identify the correct statement for change of Gibbs energy for a system ($\Delta G_{\text{system}}$) at constant temperature and pressure:

A solution containing $10{\text{g per dm}}^3$ of urea (molecular mass = $60{\text{g mol}}^{-1}$) is isotonic with a $5\%$ solution of a non-volatile solute. The molecular mass of this non-volatile solute is :

A plot of $\log \frac{x}{m}$ versus $\log p$ for the adsorption of a gas on a solid gives a straight line with slope equal to :

Assume each reaction is carried out in an open container. For which reaction will $\Delta H=\Delta E$ ?

In a set of reactions propanoic acid yielded a compound D.${\text{CH}}_3{\text{CH}}_2\text{COOH}\stackrel{{\text{SOCl}}_2}{\to }\text{B}\stackrel{{\text{NH}}_3}{\to }\text{C}\underset{\text{KOH}}{\overset{{\text{Br}}_2}{\to }}\text{D}$ The structure of D would be :

During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process$\text{Proteins}\stackrel{\text{Enzyme (A)}}{\to }\text{Polypeptides}\stackrel{\text{Enzyme (B)}}{\to }\text{Amino acids}$, are respectively:

The human body does not produce :

CsBr crystallises in a body centred cubic lattice. The unit cell length is $436.6\text{pm}$. Given that the atomic mass of Cs = $133\text{amu}$ and that of Br = $80\text{amu}$ and Avogadro number being $6.02\times 10^{23}{\text{mol}}^{-1}$, the density of CsBr is :

More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is :

Given : The mass of electron is $9.11\times 10^{-31}\text{kg}$ plank constant is $6.626\times 10^{-34}\text{Js}$, the uncertainty involved in the measurement of velocity within a distance of $0.1\text{A˚}$ is :

Copper sulphate dissolves in excess of KCN to give :

In which of the following pairs are both the ions coloured in aqueous solution?(At. no. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co= 27)

${\text{Al}}_2{\text{O}}_3$ can be converted to anhydrous ${\text{AlCl}}_3$ by heating :

The enthalpy and entropy change for the reaction:${\text{Br}}_2(\text{l})+{\text{Cl}}_2(\text{g})\to 2\text{BrCl}(\text{g})$ Are $30{\text{kJ mol}}^{-1}$ and $105{\text{JK}}^{-1}{\text{mol}}^{-1}$ respectively. The temperature at which the reaction will be in equilibrium is:

The appearance of colour in solid alkali metal halides is generally due to :

The general molecular formula, which represents the homologous series of alkanols is :

If $E_{{\text{Fe}}^{2+}/\text{Fe}}^{\circ }=-0.441\text{V}$ and $E_{{\text{Fe}}^{3+}/{\text{Fe}}^{2+}}^{\circ }=0.771\text{V}$, the standard emf of the reaction :$\text{Fe}+2{\text{Fe}}^{3+}\to 3{\text{Fe}}^{2+}$ will be :

For the reaction$2\text{A}+\text{B}\to 3\text{C}+\text{D}$ Which of the following does not express the reaction rate?

For the reaction,${\text{CH}}_4(\text{g})+2{\text{O}}_2(\text{g})\rightleftharpoons {\text{CO}}_2(\text{g})+2{\text{H}}_2\text{O}(\text{l})$${\Delta }_{r}H=-170.8{\text{kJ mol}}^{-1}$ Which of the following statements is not true?

$[\text{NH}({\text{CH}}_2{)}_6\text{NHCO}({\text{CH}}_2{)}_4\text{CO}{]}_n$ is a :

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of $\alpha$ -hydroxy acid. The carbonyl compound is :

Which one of the following is a peptide hormone?

The major organic product in the reaction,${\text{CH}}_3-\text{O}-\text{CH}({\text{CH}}_3{)}_2+\text{HI}\to \text{Product}$ is :

Nucleophilic addition reaction will be most favoured in :

The enthalpy of combustion of ${\text{H}}_2$, cyclohexene (${\text{C}}_6{\text{H}}_{10}$) and cyclohexane (${\text{C}}_6{\text{H}}_{12}$) are -241, -3800 and -3920 kJ per mol respectively. Heat of hydrogenation of cyclohexene is :

Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields :

Consider the reaction${\text{N}}_2(\text{g})+3{\text{H}}_2(\text{g})\to 2{\text{NH}}_3(\text{g})$ The equality relationship between $\frac{d[{\text{NH}}_3]}{dt}$ and $-\frac{d[{\text{H}}_2]}{dt}$ is :

Which of the following is not chiral?

$[\text{Co}({\text{NH}}_3{)}_4({\text{NO}}_2{)}_2]\text{Cl}$ exhibits :

$[\text{Cr}({\text{H}}_2\text{O}{)}_6]{\text{Cl}}_3$ (at. No. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of $3d$ electrons in the chromium of the complex is :

$1.00\text{g}$ of non-electrolyte solute (molar mass $250{\text{g mol}}^{-1}$) was dissolved in $51.2\text{g}$ of benzene. If the freezing point depression constant, $K_f$ of benzene is $5.12{\text{K kg mol}}^{-1}$, the freezing point of benzene will be lowered by :

Which of the following pairs constitutes a buffer?

The hydrogen ion concentration of a $10^{-8}\text{M}$ $\text{HCl}$ aqueous solution at $298\text{K}$ ($K_w=10^{-14}$) is :

A solution of acetone in ethanol :

A hypothetical electrochemical cell is shown below $\text{A}|{\text{A}}^{+}(x\text{M})||{\text{B}}^{+}(y\text{M})|\text{B}$.The emf measured is $+0.20\text{V}$. The cell reaction is :

Ethylene oxide when treated with Grignard reagent yields :

During osmosis, the flow of water through a semi-permeable membrane is :

Which of the following is more basic than aniline?

In which of the following molecules are all the bonds not equal?

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of ${\text{NH}}_3$ ($1.5\text{D}$) is larger than that of ${\text{NF}}_3$ ($0.2\text{D}$). This is because :

The correct order of the mobility of the alkali metal ions in aqueous solution is :

The correct order regarding the electronegativity of hybrid orbitals of carbon is:

Which of the following species has a linear shape?

Which of the following is the most basic oxide?

The orientation of an atomic orbital is governed by :

Which of the following is not a correct statement?

The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is :

Which one of the following orders is not in accordance with the property stated against?

Which of the following is not isostructural with ${\text{SiCl}}_4$?

The IUPAC name of is :

In producing chlorine through electrolysis $100\text{W}$ power at $125\text{V}$ is being consumed. How much chlorine per min is liberated? ECE of chlorine is $0.367\times 10^{-6}\text{kg/C}$:

In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will: (All resistance given in ohms)

A rectangular block of mass $m$ and area of cross-section $A$ floats in a liquid of density $\rho$. If it is given a small vertical displacement from equilibrium, it undergoes oscillation with a time period $T$. Then:

A Carnot engine whose sink is at $300\text{K}$ has an efficiency of $40\%$. By how much should the temperature of the source be increased so as to increase its efficiency by $50\%$ of original efficiency?

When a charged particle moving with velocity $\vec{v}$ is subjected to a magnetic field of induction $\vec{B}$, the force on it is non-zero. This implies that:

Two cells having the same emf, are connected in series through an external resistance $R$. Cells have internal resistance $r_1$ and $r_2$ respectively. When the circuit is closed, the potential difference across the first cell is zero. The value of $R$ is:

A black body at $1227^{\circ }\text{C}$ emits radiations with maximum intensity at a wavelength of $5000\text{A˚}$. If the temperature of the body is increased by $1000^{\circ }\text{C}$, the maximum intensity will be observed at:

Two circular coils $1$ and $2$ are made from the same wire but the radius of the $1^{\text{st}}$ coil is twice that of the $2^{\text{nd}}$ coil. What is the ratio of the potential difference applied across them so that the magnetic field at their centres is the same?

A transistor-oscillator using a resonant circuit with an inductance $L$ (of negligible resistance) and a capacitance $C$ has a frequency $f$. If $L$ is doubled and $C$ is changed to $4C$, the frequency will be:

The binding energy of deuteron is $2.2\text{MeV}$ and that of ${}_2^4\text{He}$ is $28\text{MeV}$. If two deuterons are fused to form one ${}_2^4\text{He}$, then the energy released is:

In a radioactive material, the activity at time $t_1$ is $R_1$ and at a later time $t_2$, it is $R_2$. If the decay constant of the material is $\lambda$, then: