The difference between amylose and amylopectin is: 

In humans, the main oxygen carrier in the blood is -

1. Hemocyanin

2. Proteins

3. Haemoglobin

4. Both microorganisms and haemoglobin.

Which of the following statements is not correct?

The central dogma of molecular genetics states that the genetic information flows from
(1) amino acids $\to$ proteins $\to$ DNA

(2) DNA $\to$ carbohydrates $\to$ proteins

(3) DNA $\to$ RNA $\to$ proteins

(4) DNA $\to$ RNA $\to$ carbohydrates

The correct corresponding order of names of four aldoses with configuration given below

respectively, is
1. L-erythrose, L-threose, L-erythrose, D-threose

2. D-threose, D-erythrose, L-threose, L-erythrose

3. L-erythrose, L-threose, D-erythrose, D-threose

4. D-erythrose, D-threose, L-erythrose, L-threose

A  non-reducing sugar among the following is -

1. Lactose                       

2. Glucose

3. Sucrose                       

4. Maltose

Which one of the following compounds shows the presence of an intramolecular hydrogen bond?

1. H₂O₂

2. HCN

3. Cellulose

4. Concentrated acetic acid

The central dogma of molecular genetics states that the genetic information flows from:

1. amino acid - proteins - DNA

2. DNA - carbohydrates - proteins

3. DNA - RNA - proteins

4. DNA - RNA - Carbohydrates

The correct corresponding order of names of four aldoses with configuration given below respectively, is:

1. L-erythrose, L-threose, L-erythrose, D-threose

2. D-threose, D-erythrose, L-threose, L-erythrose

3. L-erythrose, L-threose, D-erythrose, D-threose

4. D-erythrose, D-threose, L-erythrose, L-threose