List as many different enzyme activities requied during DNA synthesis as you can.

In how many different ways can 8 friends sit around a table?

Enzymes are proteins. Proteins are long chains of aminoacids linked to each other by peptide bonds. Amino acids have many functional groups in their structure. These functional groups are, many of themat least, ionisable. As they are weak acids and bases in chemical nature, this ionization is influenced by pH of the solution. For many enzymes, activity isinfluenced by surrounding pH. This is depicted in the curve below, explain briefly.

How many different 6 - digit numbers can be formed using digits in the number 6, 5, 9, 9, 4, 2? How many of them are divisible by 4?

In how many different ways can 4 married couples seat themselves around a circular table if (i) Spouses sit opposit each other? (ii) Men and women alternate?

Use your brain power: Amar, Akbar and Anthony are travelling in different cars with different velocities. The distance covered by them during different time intervals are given in the following table. Considering the distances covered by Amar, Akbar, Anthony in fixed time intervals, what can you say about their speeds?

Give 5 flags of different colours, how many different-signal can be generated. If each signal requires the use of 2 flags one below the other.

How many different arrangements can be made by using all the letters of the word ‘EQUATION’ beginning with vowels and ending with a consonant?