Recent questions tagged 141

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :

asked Jul 8, 2019 by pady_1

1 answer

$\displaystyle\lim_{x \to \infty} \begin{vmatrix} \frac{a^{1/x} + b^{1/x} + c^{1/x} }{3} \end{vmatrix}^x$, where $a, b, c$ are real and non-zero is equal to :

asked Dec 19, 2018 by pady_1

0 answers

If $\overrightarrow{a}$ and $\overrightarrow{b}$ are unit vectors and $|\overrightarrow{a} \times \overrightarrow{b}|=1$, then the angle between $\overrightarrow{a}$ and $\overrightarrow{b}$ is :

asked Dec 19, 2018 by pady_1

0 answers

If $\theta$ is an acute angle and the vector $(\sin \theta) \hat{i} + (\cos \theta) \hat{j}$ is perpendicular to the vector $\hat{i}- \sqrt{3} \hat{j}$ ,then $\theta$ is equal to :

asked Dec 19, 2018 by pady_1

0 answers

$\frac{d}{dx} \sin^{-1} (3x-4x^3)$ is equal to :

asked Dec 11, 2018 by pady_1

0 answers

$PCl_3$ and $PCl_5$ both exist; $NCl_3$ exists but $NCl_5$ does not exist. It is due to :

asked Dec 11, 2018 by pady_1

0 answers

For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be :

asked Dec 11, 2018 by pady_1

0 answers

If $(a, a^2)$ falls inside the angle made by the lines $y=\frac{x}{2}, \;x > 0$ and $y = 3x,\; x > 0$, then $a$ belongs to :

asked Nov 13, 2018 by pady_1

1 answer

The structure of diborane $(B_2H_6)$ contains :

asked Nov 5, 2018 by pady_1

0 answers

Which base is present in RNA but not in DNA ?

asked Nov 5, 2018 by pady_1

2 answers

AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA ?

asked Aug 21, 2018 by pady_1

2 answers

The given electrical network is equivalent to <br>

asked Aug 21, 2018 by pady_1

1 answer

Out of the following options which one can be used to produce a propagating electromagnetic wave ?

asked Aug 21, 2018 by pady_1

1 answer

A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. $E_0$ and a resistance $r_1$. An unknown e.m.f. E is balanced at a length l of the potentiometer wire. The e.m.f. E will be given by :

asked Aug 21, 2018 by pady_1

1 answer

Choose the correctly matched pair:

asked Aug 20, 2018 by pady_1

1 answer

What external changes are visible after the last moult of a cockroach nymph ?

asked Aug 20, 2018 by pady_1

1 answer

Yeast is used in the production of

asked Aug 20, 2018 by pady_1

1 answer

Which one of the following is not a biofertilizer ?

asked Aug 16, 2018 by pady_1

1 answer

which one of the following is used as vector for cloning genes into higher organisms?

asked Jul 26, 2018 by pady_1

1 answer

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of :

asked Jul 26, 2018 by pady_1

1 answer

Gel electrophoresis is used for:

asked Jul 26, 2018 by pady_1

1 answer

Which one of the following pairs, is not correctly matched ?

asked Jul 26, 2018 by pady_1

1 answer

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

asked Jul 25, 2018 by pady_1

1 answer

If mammalian ovum fails to get fertilized, which one of the following is unlikely -

asked Jul 24, 2018 by pady_1

1 answer

In the somatic cell cycle :-

asked Jul 24, 2018 by pady_1

1 answer

Chromosomes in a bacterial cell can be 1–3 in number and : -

asked Jul 24, 2018 by pady_1

1 answer

In five kingdom system, the main basis of classification : -

asked Jul 23, 2018 by pady_1

1 answer

L.S.D. is : -

asked Jul 20, 2018 by pady_1

1 answer

Depolarization of axolema during nerve conduction takes place because of :

asked Jul 20, 2018 by pady_1

1 answer

Largest sperm of :

asked Jun 15, 2018 by pady_1

1 answer

A train can run 45.8 km in one hour. What will be the distance travelled by the train in 5 hours?

asked Dec 31, 2015 by pady_1

0 answers

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