The enzyme amylase belongs to the class

1.	hydrolase
2.	isomerase
3.	transferase                      ​​​​​​
4.	lyases

Cobalt is present in the molecule of

DNA has deoxyribose as the constituent sugar. The position where the sugar lacks oxygen is

1. 1

2. 2

3. 3

4. 4

The linkage that joins two adjacent nucleotides in RNA is

1. phosphate ester                 

2. phosphodiester

3. phosphate anhydride         

4. N-glycoside

Phosphodiester bond is present in

1. ATP

2. ADP

3. cAMP

4. none of these

Heating may cause denaturation of enzyme or protein mainly by damaging its

Which of the following is incorrect?

Which of the following vitamins is a coenzyme for amino acid and fatty acid metabolism?

The inhibition of succinic dehydrogenase by malonate is an example of

1. competitive inhibition

2. non-competitive inhibition

3. allosteric modulation

4. none of the above

In RNA thymine is replaced by

1. uracil                           

2. adenine

3. thiamine                       

4. guanine