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In The Digestive System The pH Of The Stomach And The Intestine, Respectively Are (A) Acidic and Acidic. (B) Acidic and Neutral. (C) Acidic and Alkaline. (D) Alkaline and Acidic.

The correct answer is (C) Acidic and Alkaline. The pH of the stomach is acidic of about 1-3 and is acidic. This is because of the presence of... View Article

Which Chromosome Is Lost During Cell Division? (A) Acentric Chromosome. (B) Polycentric Chromosome. (C) Telocentric Chromosome. (D) None Of These.

The correct answer is (A) Acentric chromosome. Acrocentric chromosomes break and fuse together to form a chromosome without a centromere. It... View Article

The Process Of Copying Genetic Information From One Strand Of DNA Into RNA Is Termed As (A) Translation. (B) Replication. (C) Transcription. (D) Transmination.

The correct answer is (C) Transcription. Transcription is the first step of gene expression and it involves the formation of RNA molecules from... View Article

The Diameter Of A Hollow Metallic Sphere Is 60 Cm And The Sphere Carries A Charge Of 500uc. Calculate The Electric Field And The Potential (i) At A Distance Of 100 cm. From The Centre Of The Sphere. (ii) At The Surface Of The Sphere. (iii) At A Distance 10 Cm From The Centre Of The Sphere.

Sol: (i) At a distance of 100 cm from the centre of the sphere. E = V = (ii) At the surface of the sphere. r = R = 30 cm =... View Article

The Chemical Formula For Sodium And Sulphur Contains (A) One Sulphur And One Sodium Atoms. (B) One Sulphur And Two Sodium Atoms. (C) Two Sulphur And One Sodium Atoms. (D) Two Sulphur And Two Sodium Atoms.

The correct answer is (B) One Sulphur And Two Sodium Atoms. The chemical formula for sodium sulphide(Na₂S) contains one sulphur (S) and two... View Article

A Coronary Sulcus is _______.(a) Transverse groove.(b) Longitudinal sulcus.(c) Inter-articular septum.(d) Also known as the interventricular sulcus.

The correct answer is (a) Transverse groove. The coronary sulcus is a transverse groove on the surface of the heart that separates the atria... View Article

Explain The Following: The Sun Is Seen Before The Sunrise And After The Sunset.

The sun is seen before sunrise and after sunset. We usually see the light rays emitted from the sun before sunrise and after sunset. In the... View Article

If Reading Is Related To Knowledge In The Same Way As Work Is Related To______. (A) Money. (B) Experience. (C) Engagement. (D) Employment.

The correct answer is (B) Experience. Explore more such questions and answers at BYJU’S.... View Article

What Is Speciation?

In Evolutionary Biology, the rise of new species is termed speciation. There are five types of speciation: Artificial speciation Allopatric... View Article

Express The Sum In The Form Of p/q – 3/4 + 2/3 + -4/5

Given: Therefore, the sum of 3/4 + 2/3 + -4/5 in the form of: Explore more such questions and answers at BYJU’S.... View Article

If TWENTY Is Written As 863985 And ELEVEN Is Written As 323039. How Is TWELVE Written In This Coding System?

In this coding system, T is coded as 8, W is coded as 6, E is coded as 3, L is coded as 2, V is coded as 0. Therefore, the code for TWELVE is... View Article

A Three-Wheeler Starts From Rest, Accelerates Uniformly With 1 M S–2 On A Straight Road For 10 S And Then Moves With Uniform Velocity. Plot The Distance Covered By The Vehicle During The Nth Second (N = 1,2,3….) Versus N. What Do You Expect This Plot To Be During Accelerated Motion: A Straight Line Or A Parabola?

Sol: The distance covered by a body in nth second is given by: ---[1] Where: u = Initial Velocity a = Acceleration n = Time - 1,2,3,....n... View Article

An Object Comprises Of A Uniform Ring Of Radius R And Its Uniform Chord Ab. Which Of The Following Can Not Be The Centre Of Mass Of The Object? (A) (R/3, R/2) (B) (R/3, R/3) (C) (R/4, R/4) (D) (R/SQRT 2, R/SQRT 2)

The correct answer is (A) (R/3, R/2) As the chord is uniform, the centre of the mass coordinate of the system will be displaced in the x and y... View Article

According To The New Cartesian Sign Convention, Which Of The Following Is Taken As Origin? (A) Focus. (B) Centre Of Curvature. (C) Pole Of The Mirror. (D) Any Point On The Principal Axis.

The correct answer is (C) Pole Of The Mirror. According to the new cartesian sign convention, the pole of the mirror is taken as the origin.... View Article

There Are 6 Multiple Choice Questions In An Examination. How Many Sequences Of Answers Are Possible, If The First Three Questions Have 4 Choices Each And The Next Three Have 2 Each?

The permutation of the first three questions are (4)3 = 64 The permutation of the next three questions are (2)3 = 8 The total permutation is 64... View Article

Why Do You Need To Study Evolution?

The study of evolution is used to understand the different living species, including plants, animals, reptiles and birds, how they became... View Article

One Litre Of A Gas Weighs 2g At 300k And 1atm Pressure. If The Pressure Is Made 0.75atm At What Temperatures Will One Litre Of The Same Gas, Weigh One Gram?

Sol: The Ideal gas equation = PV = nRT Therefore, at 450 K temperatures, one litre of the same gas will weigh one gram. Explore more such... View Article

One Of The Most Resistant Biological Materials Is (A) Lignin. (B) Cellulose. (C) Sporopollenin. (D) Hemicellulose.

The correct answer is (C) Sporopollenin. Sporopollenin is the major component of exine of spores and pollen. Sporopollenin is the major... View Article

Natural Length Of A Spring Is 60cm And Its Spring Constant Is 4000n/M. A Mass Of 20kg Is Hung From It. The Extension Produced In The Spring Is (Take G = 9.8 M/S2)

Sol: Given, Length, l=60 cm = 60 * 10−2m Mass, m = 20 kg Spring constant, k = 4000 N/m g = 9.8 m/s2 The weight hung from the spring = mg.... View Article

Define The Term Phylogeny?

The phylogeny is a diagrammatic representation of evolutionary relationships among organisms. The phylogeny has roots, branches, tips and nodes.... View Article

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