List of practice Questions

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Cephalochordates differ from cyclostomes and other vertebrates in most of their primitive features and the same raise objection for their affinity. Reason R: Branchiostoma possess all the important chordate characters. Choose the most appropriate answer from the options given below
The substitution of sexual reproduction by a method without the involvement of meiosis and syngamy is referred as
Find the correct statements about phages A. Phages clear the bacteria in the polluted water.
B. Phages are also used in the diagnosis of certain infections.
C. T-even phages are genetically closely related.
D. The enzymes secreted by the capsid are helpful in lysis of bacterial cell wall.
E. Phages have only double stranded DNA. Choose the correct answer from the options given below:
Cladode is found in
According to the Telome theory of Zimmermann find out the correct elementary processes for the development of higher vascular plants from the vascular cryptogams A. Overlapping
B. Plantation
C. Syngenesis
D. Production
E. Curvation Choose the correct answer from the options given below:
An example for anamniote animal is
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The characteristic feature of the endosperm haustoria is that they are developed from the cellular endosperm only. Reason R: The endosperm haustoria are formed at the micropylar or chalazal or at both the ends and penetrate the nucellar tissue to absorb nutrition. In the light of the above statements, choose the most appropriate answer from the options given below
Cleavage polyembryony is fairly common in
Which of the following is NOT an essential characteristic of a protected area to be considered as a biosphere reserve
Star-shaped chloroplast is found in
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Cladograms are diagrams that depict the relationships between different groups of taxa. Reason R: Cladistics analyses collection of heritable character data. In the light of the above statements, choose the most appropriate answer from the options given below
When alkali metal are dissolved in liquid ammonia the blue colour of solution is due to
Which of the following causes photochemical smog?
Environmentalist use which of following compound as bleaching agent
Which of the following group attached to benzene act as meta directing group
Most stable conformation of n-butane
Which of the following reaction intermediate cannot show $sp^{2}$ hybridisation}
Which of the following species are isoelectronic? A. $S^{2-}$
B. $C^{4-}$
C. $Mg^{2+}$
D. $O^{-}$
E. $Al^{3+}$ Choose the correct answer from the options given below:
Non-stoichiometric KCl shows lilac colour due to
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Mass and volume are extensive properties.
Reason R: The ratio of mass to volume is also an extensive property. In the light of the above statements, choose the most appropriate answer from the options given below
The parameters of Unit Cell in Hexagonal Crystal System is
Cold light emission by glow worms is an example of
In Cu atom $Z_{eff}$ value for 3d & 4s electron are respectively}
The molar conductance of $NH_{4}Cl$, $NH_{4}NO_{3}$ and $AgNO_{3}$ at infinite dilution are $x$, $y$ & $z~Sm^{2}mol^{-1}$ respectively. The molar conductance of AgCl at infinite dilution is}
Which of the following has highest spin only magnetic moment