Recent questions tagged 110

The shorter and longer arms of a submetacentric chromosome are referred to as :-

asked Jul 8, 2019 by pady_1

1 answer

If $\frac{(x+1)^2}{x^3 + x} = \frac{A}{x} + \frac{Bx + C}{x^2 + 1}$, then $\sin^{-1} (A/C)$ is equal to :

asked Dec 19, 2018 by pady_1

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In a triangle $A = \sqrt{15} - \sqrt{11}, \; B = \sqrt{17} - \sqrt{13}$ then :

asked Dec 19, 2018 by pady_1

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The vertex of the parabola $x^2+ 8x + 12y+4=0$ is :

asked Dec 19, 2018 by pady_1

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Two dice are rolled simultaneously. The probability that the sum of the two numbers on the dice is a prime number, is :

asked Dec 11, 2018 by pady_1

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The number of lone pairs on $Xe$ in $XeF_2, \; XeF_4$ and $XeF_6$ respectively are :

asked Dec 11, 2018 by pady_1

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A pressure cooker reduces cooking time for food because :

asked Dec 11, 2018 by pady_1

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Which one of the following is the strongest base in aqueous solution ?

asked Nov 29, 2018 by pady_1

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$(\Delta H - \Delta U)$ for the formation of carbon monoxide (CO) from its elements at 298 K is : <br> $(R = 8.314 \; JK^{-1} mol^{-1})$

asked Nov 13, 2018 by pady_1

0 answers

What is the conjugate base of $OH^-$ ?

asked Nov 5, 2018 by pady_1

1 answer

The enthalpies of combustion of carbon and carbon monoxide are $-393.5$ and $-283 \; kJ\; mol^{-1}$ respectively. The enthalpy of formation of carbon monoxide per mole is

asked Nov 5, 2018 by pady_1

1 answer

The Golgi complex participates in

asked Aug 21, 2018 by pady_1

1 answer

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?

asked Aug 21, 2018 by pady_1

2 answers

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options :

asked Aug 21, 2018 by pady_1

1 answer

The wings of a bird and the wings of an insect are :

asked Aug 21, 2018 by pady_1

1 answer

In which one of the following processes $CO_2$ is not released?

asked Aug 20, 2018 by pady_1

1 answer

During seed germination its stored food is mobilized by

asked Aug 20, 2018 by pady_1

1 answer

PCR and Restriction Fragment Length Polymorphism are the methods for

asked Aug 20, 2018 by pady_1

1 answer

Mutations can be induced with :

asked Aug 16, 2018 by pady_1

1 answer

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

asked Jul 26, 2018 by pady_1

1 answer

Plasmodesmata are :

asked Jul 26, 2018 by pady_1

2 answers

Which one of the following is not observed in biodiversity hotspots ?

asked Jul 26, 2018 by pady_1

1 answer

For a critical study of secondary growth in plants, which one of the following pairs is suitable ?

asked Jul 26, 2018 by pady_1

1 answer

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

asked Jul 25, 2018 by pady_1

1 answer

E. coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because -

asked Jul 24, 2018 by pady_1

1 answer

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms includes -

asked Jul 24, 2018 by pady_1

1 answer

If Henle's loop were absent from mammalian nephron, which of the following is to be expected : -

asked Jul 24, 2018 by pady_1

1 answer

Genetic drift oparates in : -

asked Jul 23, 2018 by pady_1

1 answer

A and B genes are linked. What shall be genotype of progeny in a cross between AB/ab and ab/a

asked Jul 20, 2018 by pady_1

1 answer

Which is showing accurate pairing :

asked Jul 20, 2018 by pady_1

1 answer

Knife of DNA :

asked Jun 15, 2018 by pady_1

3 answers

Convert 54.972 to fraction.

asked Dec 31, 2015 by pady_1

0 answers

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