A pair of chromosomes in fruit fly and humans determine sex. These are referred to as sex chromosomes. What is the name given to other chromosomes?

Consider the following statements:

$1.$ The positive charge is immovable because it contains practically all the atom's mass.

$2.$ Atom is the smallest particle of an element that takes part in a chemical reaction.

Which of the statements given above is/are correct?

Consider the following statements:

$1$. In a healthy human eye, the focussing is done by the change in the convexity of the lens through ciliary muscles.

$2$. Hypermetropia is corrected by using a converging lens.

$3$. Human eye is most sensitive to red color.

Which of the statements given above are correct?

Consider the following statements:

$1$. If the length of the tube is less and cannot accommodate the maximum rise of liquid, then the meniscus will adjust itself so that the water does not spill.

$2$. The shape of a non-wetting liquid placed in a capillary tube is convex upwards.

$3$. For a liquid rising in a capillary, the angle of contact is obtuse.

Which of the statements given above are correct?

Consider the following statements:

1. Branch of Biology in which we study about the treatment of mental disease, is called Psychiatry.

2. Ophthalmology is the branch of science in which we study about the eye.

3. Nephrology is the study of kidney.

4. Study of pulse and arterial blood pressure is called Sphygmology.

Which of the statements given above are correct?

Consider the following statements:

$1$. A bond is formed by the transfer of electrons between the atoms of the element is called an ionic bond.

$2$. A bond is formed by the sharing of electrons between the atoms of the elements is called a covalent bond.

Which of the statements given above is/are correct?

Consider the following statements about the laws of refraction:

A. The incident ray, the refracted ray and normal to the interface at the point of incidence, all lie in the same plane.

B. Whenever light goes from one medium to another, the frequency of light and phase do not change. However, the velocity of light and the wavelength change.

Which of the statements given above is/are correct?