Recent questions tagged 128

Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body Select the correct option of animal groups which possess all the characteristics

asked Jul 8, 2019 by pady_1

1 answer

$A = (-9, 0)$ and $B = (-1, 0)$ are two points. If $P=(x,y)$ is a point such that $3PB = PA$, then the locus of $P$ is :

asked Dec 19, 2018 by pady_1

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The equation of polar of $(-2,3)$ w.r.to $x^2 + y^2 - 4x-6y+5=0$, is :

asked Dec 19, 2018 by pady_1

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If $u = \log_e (x^2+y^2) + \tan^{-1} (y/x)$, then $\frac{\partial^2u}{dx^2} + \frac{\partial^2u}{\partial y^2}$ is equal to:

asked Dec 19, 2018 by pady_1

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The radical axis of circles $x^2 + y^2 + 5x + 4y-5=0$ and $x^2 + y^2 - 3x+ 5y-6=0$ is

asked Dec 11, 2018 by pady_1

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Uncertainty in position of a particle of 25 g in space is $10^{-5}m$. Hence uncertainty in velocity $(ms^{-1})$ is (Planck's constant $h = 6.6 \times 10^{-34} Js$) :

asked Dec 11, 2018 by pady_1

0 answers

The radius of $La^{3+}$ (Atomic number of La = 57) is $1.06 \mathring{A}$. Which one of the following given values will be closest to the radius of $Lu^{3+}$ (Atomic number of Lu = 71) ?

asked Dec 11, 2018 by pady_1

0 answers

At an election, a voter may vote for any number of candidates not greater than the number to be elected. There are 10 candidates and 4 are to be elected. If a voter votes for at least one candidate, then the number of ways in which he can vote, is :

asked Nov 13, 2018 by pady_1

0 answers

Tertiary alkyl halides are practically inert to substitution by $S_N 2$ mechanism because of :

asked Nov 5, 2018 by pady_1

0 answers

The correct order of magnetic moments (spin only values in B.M.) among is <br> (Atomic numbers : Mn = 25; Fe = 26; Co = 27 )

asked Nov 5, 2018 by pady_1

2 answers

Casparian strips occur in

asked Aug 21, 2018 by pady_1

1 answer

The pivot joint between atlas and axis is a type of :

asked Aug 21, 2018 by pady_1

1 answer

Select the incorrect statement :

asked Aug 21, 2018 by pady_1

1 answer

Industrial melanism is an example of -

asked Aug 21, 2018 by pady_1

1 answer

An alga which can be employed as food for human beings:

asked Aug 20, 2018 by pady_1

1 answer

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme ?

asked Aug 20, 2018 by pady_1

1 answer

A process that makes important difference between $C_3 and C_4$ plants is

asked Aug 20, 2018 by pady_1

1 answer

Nucellar polyembryony is reported in species of :

asked Aug 16, 2018 by pady_1

1 answer

ABO blood groups in humans are controlled by the gene I. It has three alleles – $I^A, I^B$ and $i$. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur –

asked Jul 26, 2018 by pady_1

1 answer

Select the incorrect statement from the following :

asked Jul 26, 2018 by pady_1

1 answer

Thermococcus, Methanococcus and Methanobacterium exemplify:

asked Jul 26, 2018 by pady_1

1 answer

Among the human ancestors the brain size was more than 1000 CC in:-

asked Jul 26, 2018 by pady_1

1 answer

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

asked Jul 25, 2018 by pady_1

2 answers

Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on

asked Jul 24, 2018 by pady_1

1 answer

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive :-

asked Jul 24, 2018 by pady_1

1 answer

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner : -

asked Jul 24, 2018 by pady_1

1 answer

Acromegaly is caused by : -

asked Jul 23, 2018 by pady_1

0 answers

Which of the following prevents the fall of fruits : -

asked Jul 20, 2018 by pady_1

1 answer

Reason, why hair loss is more in old age :

asked Jul 20, 2018 by pady_1

1 answer

Number of bones in hind limb of man :

asked Jun 15, 2018 by pady_1

1 answer

Subtract 81 kg 753 g from 189 kg 843 g

asked Dec 31, 2015 by pady_1

0 answers

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