Recent questions tagged 130

Following statements describe the characteristics of the enzyme Restriction endonuclease. Identify the incorrect statement.

asked Jul 8, 2019 by pady_1

1 answer

$k$ is non-zero constant. If $k = \frac{a+b}{ab}$, then straight line $\frac{x}{a} + \frac{y}{b} = 1$ passes through the point :

asked Dec 19, 2018 by pady_1

0 answers

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

asked Dec 19, 2018 by pady_1

0 answers

$\begin{align} \int e^x (1+\cot x + \cot^2 x)dx \end{align}$ is equal to :

asked Dec 19, 2018 by pady_1

0 answers

The length of latus rectum of parabola $y^2 + 8x -2y+17=0$ is :

asked Dec 11, 2018 by pady_1

0 answers

A reaction is non-spontaneous at the freezing point of water but is spontaneous at the boiling point of water then : <br><br>

asked Dec 11, 2018 by pady_1

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The half-life of a radioactive isotope is 3 h. If the initial mass of the isotope were 256 g, the mass of it remaining undecayed after 18 h would be :

asked Dec 11, 2018 by pady_1

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For natural numbers $m$, $n$ if $(1-y)^m (1+y)^n = 1 + a_{_1}y + a_{_2} y^2 + ...$ and $a_{_1} = a_{_2} = 10$, then $(m, n)$ is :

asked Nov 13, 2018 by pady_1

0 answers

Among the following acids which has the lowest $pK_a$ value ?

asked Nov 5, 2018 by pady_1

0 answers

The half-life of a radioisotope is four hours. If the inital mass of the isotope was 200 g, the mass remaining after 24 hours undecayed is

asked Nov 5, 2018 by pady_1

2 answers

A 'new' variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to

asked Aug 21, 2018 by pady_1

1 answer

Which ecosystem has the maximum biomass ?

asked Aug 21, 2018 by pady_1

1 answer

Joint Forest Management Concept was introduced in India during :

asked Aug 21, 2018 by pady_1

1 answer

The introduction of t-DNA into plants involves -

asked Aug 21, 2018 by pady_1

1 answer

An example of ex situ conservation is :

asked Aug 20, 2018 by pady_1

1 answer

Which of the following are likely to be present in deep sea water ?

asked Aug 20, 2018 by pady_1

1 answer

The coconut water and the edible part of coconut are equivalent to

asked Aug 20, 2018 by pady_1

1 answer

What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ?

asked Aug 16, 2018 by pady_1

1 answer

A common biocontrol agent for the control of plant diseases is –

asked Jul 26, 2018 by pady_1

0 answers

An example of a seed with endosperm, perisperm and caruncle is -

asked Jul 26, 2018 by pady_1

1 answer

Dry indehiscent single-seeded fruit formed from bicarpellary, syncarpous, inferior ovary is:

asked Jul 26, 2018 by pady_1

1 answer

Select the correct statement from the following:

asked Jul 26, 2018 by pady_1

1 answer

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

asked Jul 25, 2018 by pady_1

0 answers

Which of the following is not used for disinfection of drinking water -

asked Jul 24, 2018 by pady_1

2 answers

Which of the following statements is not true for retroviruses :-

asked Jul 24, 2018 by pady_1

1 answer

Which one of the following describes correctly the homologous structures : -

asked Jul 24, 2018 by pady_1

0 answers

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called : - (a)Photo autotrophs

asked Jul 23, 2018 by pady_1

1 answer

Which pigment system inactivated in red drop : -

asked Jul 20, 2018 by pady_1

1 answer

What is the work of progesteron which is present in oral contraceptive pills :

asked Jul 20, 2018 by pady_1

1 answer

Age of Dryopithecous :

asked Jun 15, 2018 by pady_1

1 answer

Jenny purchased vegetables for Rs 29.75. She paid 100 Rs note. How much money did she get back?

asked Dec 31, 2015 by pady_1

0 answers

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