Questions

Here Homologous Means having the same relation or relative position or structure. 

Here in snakes poison is in glands and here salivary glands are in Vertebrates.

Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base.

DNA and RNA ::

The nitrogenous bases in DNA are

Adenine (A),

Guanine (G),

Thymine (T), and

Cytosine (C).

Whereas the nitrogenous bases in RNA are the same, with one exception:

Adenine (A),

Guanine (G),

Uracil (U), and

Cytosine (C).

By asking this the interviewer wants to know that do you have any touch with ECG or not.

Sample Answer :

ECG is nothing but a Electrocardiogram. Yes, i performed ECG test to some patients when i worked as an intern at a named cardiologist.

ECG procedure, or an ECG scan, an ECG test measures the electrical activity of the heart to ensure that it is functioning properly. To perform an electrocardiogram an ECG monitor is required. An ECG monitor, device or machine is required to perform an electrocardiogram and provide insight into whether your heart is working normally or not.