Question : DNA shows hyperchromicity on:

Option 1: heating

Option 2: cooling

Option 3: crystallizing

Option 4: replication

Question : Amylase enzyme can be found in ______.

Option 1: the stomach

Option 2: the liver

Option 3: the gall bladder

Option 4: saliva

Question : Three cars travelled a distance in the ratio 1 : 2 : 3. If the ratio of the time of travel is 3 : 2 : 1, then the ratio of their speed is:

Option 1: 3 : 9 : 1

Option 2: 1 : 3 : 9

Option 3: 1 : 2 : 4

Option 4: 4 : 3 : 2

Question : The hydrophilic nature of DNA is due to the presence of:

Option 1: thymine base

Option 2: many hydrogen bonds

Option 3: phosphate group

Option 4: deoxyribose sugar

Question : What is the ratio of inradius and circumradius of an equilateral triangle?

Option 1: 1 : 2

Option 2: 1 : 3

Option 3: 1 : 4

Option 4: 3 : 2