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If in the expansion [(3x) – (2 / x²)]¹⁵, rth term is independent of x, then the value of r is

1) 6 2) 10 3) 9 4) 12 Solution: (1) 6... View Article

For |x| < 1, the constant term in the expansion of 1 / [(x - 1)² (x – 2)] is

1) 2 2) 1 3) 0 4) -(1/2) Solution: (4) -(1/2)... View Article

The coefficient of the term independent of x in the expansion of {[(x + 1) / (x^2/3 – x^1/3 + 1)] – [(x – 1) / (x – x^1/2)]}¹⁰ is

1) 210 2) 105 3) 70 4) 112 Solution: (1) 210... View Article

The coefficient of the middle term in the expansion of (x + 2y)⁶ is

1) 6C3 2) 8(6C3) 3) 8(6C5) 4) 6C4 5) 8(6C4) Solution: (2) 8(6C3) The middle term of the expansion is (6 / 2) + 1 = 4th term... View Article

In the expansion (1 – 3x + 3x² – x³)²ⁿ, the middle term is

1) (n + 1)th term 2) (2n + 1)th term 3) (3n + 1)th term 4) None of these Solution: (3) (3n + 1)th term... View Article

What Is The Position Of The Centromere In The Telocentric Chromosome?

There is a terminal centromere in a telocentric chromosome.... View Article

Where Is The Centromere Located In The Acrocentric Chromosome?

In an acrocentric chromosome, the centromere is located near its end thus leading to the formation of one very long arm and one extremely short arm.... View Article

How Is The Arrangement Of Centromeres In Metacentric Chromosomes?

The metacentric chromosome has a middle centromere. It forms two equal arms of the chromosome.... View Article

What Is The Basis Of The Classification Of Chromosomes?

Chromosomes are classified into 4 types depending on the position of the centromeres. The types are - metacentric, sub-metacentric, acrocentric... View Article

How Many Chromatids Of A Chromosome Do A Centromere Hold?

Centromeres hold two chromatids of a chromosome.... View Article

Where Are Kinetochores Located?

Each chromosome has a centromere or primary constriction. On its sides, there are disc-shaped structures. These are referred to as kinetochores.... View Article

Does Chromatin Contain DNA?

Yes, chromatin contains DNA and a few basic proteins referred to as histones, a few non-histone proteins and also RNA.... View Article

What Are The Spherical Structures Present In The Nucleoplasm?

In the nucleoplasm, the spherical structures that are found are the nucleoli.... View Article

What Does The Nuclear Matrix Contain?

The nucleoplasm or the nuclear matrix contains the chromatin and nucleolus.... View Article

Name Any One Cell Which Lacks A Nucleus In Mammals.

Erythrocytes of many mammals lack a nucleus.... View Article

What Is The Role Of Nuclear Pore In The Nucleus?

Nuclear pores form the passages through which protein molecules and RNA move in both directions between the cytoplasm and the nucleus.... View Article

How Are Nuclear Pores In The Nuclear Envelope Formed?

The nuclear pores in the nuclear envelope are formed by the fusion of their two membranes.... View Article

What Is The Role Of Perinuclear Space?

The perinuclear space forms a barrier between the substances present in the nucleus and that of the cytoplasm.... View Article

What Is The Perinuclear Space In The Interphase Nucleus?

The nuclear envelope comprises two parallel membranes with a space between them. This space is referred to as the perinuclear space.... View Article

How Many Nucleoli Are Present In The Interphase Nucleus?

The interphase nucleus has one or more spherical bodies called nucleoli.... View Article

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