Which one of the following disorders is a sex linked recessive disease?

Read the following paragraph carefully and answer the given questions.
In the year 1963 the two enzymes responsible for restricting the growth of bacteriophage in E. coli were isolated. The first restriction endonuclease - Hind II, whose functioning depended on a specific DNA nucleotide sequence was characterized five years later. It was found that Hind II always cut DNA molecules at a particular point by recognizing a specific sequence of six base pairs. This specific base sequence is known as the recognition sequence for Hind II. Besides Hind II, today we know more than 900 restriction enzymes that have been isolated from over 230 strains of bacteria, each of which recognize different recognition sequences.
Restriction enzymes are also known as

In RNA interference (RNAi) the genes are silenced using:

Ex-situ conservation method does not include:
(A) Cryopreservation
(B) National park
(C) Zoological park
(D) Sacred groves
Choose the correct answer from the options given below:

Agarose gel electrophoresis is employed to check the progression of a restriction enzyme digestion of DNA. In this technique, the movement of a DNA does not depend on -

Extinction of Steller's sea Cow and passenger pigeon is due to

Which enzyme is used in detergents to remove stains from laundry?

An object is placed before a convex lens and its real image is obtained. Now if half of the surface is covered with paper. The result will be :

A magnetic substance has a susceptibility \( - 0.05 \) at 300 K. The magnetic susceptibility at 600 K is :

Let A be a square matrix of order n, then which of the following are TRUE?
(A) \(|\operatorname{adj} A|=|A|^{n-1}\)
(B) \(|A \cdot \operatorname{adj} A|=|A|^n\)
(C) A. (adj A) = |A|
(D) |KA| = K|A|
(E) \(\left|A^{-1}\right|=\frac{1}{|A|},|A| \neq 0\)
Choose the correct answert from the option given below :

The intensity of transmitted light is maximum when a Polaroid sheet (\( P_2 \)) is rotated between two crossed Polaroids, \( P_1 \) and \( P_3 \) when

Which of the following statements are correct?
(A) Magnetic susceptibility is defined as ratio of Intensity of magnetisation to magnetic field intensity.
(B) Magnetic susceptibility is a ratio of similar quantities therefore has no unit.
(C) The value of magnetic susceptibility for vacuum is one.
(D) Greater is the value of intensity of magnetisation, smaller is the value of susceptibility.
(E) Smaller is the value of magnetic field intensity, smaller is value of susceptibility.
Choose the correct answer from the options given below :

In an AC circuit, the current leads the voltage by \(\pi / 2\). The circuit is :