Recent questions tagged jeemain

On repeated sparking 10ml of mixture of carbon monoxide and nitrogen required 7ml of oxygen for combustion of CO and $N_2$ to $CO_2$ and NO.The volume of nitrogen in mixture is (all volumes are measured under identical conditions).

asked Oct 28, 2013 by sreemathi.v

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20ml of 0.1m $H_3BO_3$ solution on complete neutralization requires __________ml of 0.05m $NaOH$ solution

asked Oct 28, 2013 by sreemathi.v

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One mole of potassium chlorate is thermally decomposed excess of aluminum is burnt in the gaseous product .How many mole of aluminum oxide are formed?

asked Oct 28, 2013 by sreemathi.v

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The animal that mostly depends on 'Metabolic water' to survive for long periods without drinking water :

asked Oct 27, 2013 by thanvigandhi_1

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In rabbit the fungiform papillae that contain taste buds are distributed

asked Oct 27, 2013 by thanvigandhi_1

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Identify the sequence of steps involved during inspiration in rabbit

asked Oct 27, 2013 by thanvigandhi_1

1 answer

In a population of 5000, 200 individuals exhibit a trait for recessive allele 'a'. Find out the frequency of the dominant and recessive alleles in the population.

asked Oct 27, 2013 by thanvigandhi_1

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In rabbit the opening of coronary sinus into the left precaval vein is found by a fold called :

asked Oct 27, 2013 by thanvigandhi_1

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Identify the correct combinations

asked Oct 27, 2013 by thanvigandhi_1

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Flightless bird with preen gland is

asked Oct 27, 2013 by thanvigandhi_1

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In Convolula the tissue present between the gut and body wall is :

asked Oct 27, 2013 by thanvigandhi_1

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Dense irregular connective tissue is found in :

asked Oct 27, 2013 by thanvigandhi_1

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One of the following Hepatitis is not transmitted parenterally :

asked Oct 27, 2013 by thanvigandhi_1

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Match the following

asked Oct 27, 2013 by thanvigandhi_1

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Which of the following statements are true about protostomes?

asked Oct 27, 2013 by thanvigandhi_1

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The correct order of plants which exhibits laticiferous cells and lysigenous cavities respectively is :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Identify wrong pair of statements from the following :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

A DNA fragment of 204 A was separated by a scientist from the nuclear genome of the plant. What will be the ratio between the number of two and three hydrogen bonds formed in the components of this fragment if it contains 40% Adenine?

asked Oct 27, 2013 by thanvigandhi_1

1 answer

The ratio of chromosomal number of pollen grain of Nicotiana tobacum; endosperm cell of Oryza Sativa and root cell of Allium Cepa is

asked Oct 27, 2013 by thanvigandhi_1

1 answer

Identify the correct ratios of the following related to Bentham and Hooker's classification of plants :

asked Oct 27, 2013 by thanvigandhi_1

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$^nC_0.^nC_1$ + $^nC_1.^nC_2$ + $....^nC_{n-1}.^nC_n$ = ?

asked Oct 27, 2013 by rvidyagovindarajan_1

1 answer

Of the four plants (A,B,C and D) obswerved, 'A' was selected by mendel for his hybridization experiments, while in 'B' , shull found inbreeding depression and it is a day neutral plant. In 'C' Hugo de Vries discovered mutations. 'D' has bicollateral vascular bundles and straight embryos. Identify the characters of - A,B, C and D in correct order

asked Oct 27, 2013 by thanvigandhi_1

1 answer

A student observed a plant with stellate hairs on vegetative parts and the fruit dehiseing into many seeded mericarps. Which one of the following characters is also associated with that plant?

asked Oct 27, 2013 by thanvigandhi_1

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Identify the correct pair of statements :

asked Oct 27, 2013 by thanvigandhi_1

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Thirty seeds each of Dolichos, Pisum and Maize are kept for germination in the soil. How many cotyledons are found above the soil and below the soil respectively when all the seeds germinate?

asked Oct 27, 2013 by thanvigandhi_1

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From among the following, identify the correct order of plants which exhibit hypogynous, perigynous and epigynous flowers respectively

asked Oct 27, 2013 by thanvigandhi_1

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Identify two correct statements from the following :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

If the $4^{th}$ term in the expansion of $\big(x^2-\large\frac{1}{x^3}\big)^n$ is independent of $x$, then $n=?$

asked Oct 26, 2013 by rvidyagovindarajan_1

1 answer

The remainder when $5^{99}$ is divided by $13$ is

asked Oct 26, 2013 by rvidyagovindarajan_1

1 answer

$\large\frac{^8C_0}{6}$ - $^8C_1$ + $^8C_2.6$ + $....$ + $^8C_8.6^7$ = ?

asked Oct 26, 2013 by rvidyagovindarajan_1

1 answer

If $2x^2-3xy+y^2+x+2y-8=0$, then $\large\frac{dy}{dx}$ is equal to

asked Oct 26, 2013 by meena.p

1 answer

If $f(x)= \left\{ \begin{array}{1 1} \frac{\sin(1+[x])}{[x]}, & \quad for\;[x] \neq 0 \\ 0, & \quad for\;[x] =0 \end{array} \right. $ where $[x]$ denotes the greatest integer not exceeding x, then $\lim \limits _{x \to 0} f(x)$ is equal to

asked Oct 26, 2013 by meena.p

1 answer

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

If $f(x)= \left\{ \begin{array}{1 1} x-5, & \quad for\; x \leq 1 \\ 4x^2-9, & \quad for\;1 < x < 2 \\ 3x+4, &\quad for\; x \geq 2 \end{array} \right.$ then $f'(2^{+})$ is equal to

asked Oct 26, 2013 by meena.p

1 answer

A student observed 31 Quisqualis plants each with 36 nodes, 15 Hibiscus plants each with 21 nodes and 77 Calotropis plants each with 11 nodes. All these plants contains leaves at every node. What will be the total number of leaves of these three plants put together?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

$\lim \limits_{x \to 2} \large\frac{e^x-e^{\sin x}}{2(x- \sin x)}$

asked Oct 26, 2013 by meena.p

1 answer

The area (in square unit) of the triangle formed by the points with polar coordinates $(1,0), \bigg(2,\large\frac{ \pi}{3}\bigg)$ and $\bigg(3,\large\frac{2 \pi}{3}\bigg)$ is

asked Oct 26, 2013 by meena.p

1 answer

If the line $lx+my=1$ is normal to the hyperbola

asked Oct 26, 2013 by meena.p

1 answer

Study the following lists

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Trace the correct sequence of stages in the development of male gametophyte in Cycas, starting from microspore :

asked Oct 26, 2013 by thanvigandhi_1

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A male branch of Funaria has ten antheridia and produced a sum total of 1400 spermatozoids. What is the number of androcyte mother cells in each antheridium assuming each of the antheridia has the same number of androcytes?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Two filaments of spirogyra aplanospora are observed. One of the filaments has 150 cells another contains 225 cells. If all the cells in both the filaments are involved in asexual reproduction, what is the ratio of new filaments developed from them?

asked Oct 26, 2013 by thanvigandhi_1

1 answer

Study the following statements

asked Oct 26, 2013 by thanvigandhi_1

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The number of $F_2$ plants found similar to $F_1$ phenotype and genotypes, respectively in a total of 128 plants in $F_2$ progeny of a Mendelian dihybrid cross :

asked Oct 26, 2013 by thanvigandhi_1

1 answer

In a hydrophyte, the submerged leaves compensate for the roots. That plant belongs to the category of

asked Oct 26, 2013 by thanvigandhi_1

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Identify the plant having both spongy petiole and submerged assimilatory roots

asked Oct 26, 2013 by thanvigandhi_1

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Identify the following plants with reference to the number of phloem strands in their roots :

asked Oct 26, 2013 by thanvigandhi_1

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Study the following combinations and identify the correct matches

asked Oct 26, 2013 by thanvigandhi_1

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Which of the following disease is caused by a fungus?

asked Oct 26, 2013 by thanvigandhi_1

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Single cell protein produced from one of the following microbes is rich in methionine :

asked Oct 26, 2013 by thanvigandhi_1

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