List two essential roles of ribosome during translation.

Correct the statement rRNA transfers the amino acids from the cytoplasm to the ribosome, during protein synthesis.

Describe the initiation steps of polypeptide synthesis during prokaryotic translation.

What is the role of carbonic anhydrase enzyme in the transport of gases during respiration ?

Find the sequence of blinding of the following amino acyl-tRNA complexes during translation of an mRNA transcribed by DNA segment having the base sequence 3' TACATGGGTCCG 5'. Choose the answer showing the correct order of alphabets.

Name two metal sulphides which get converted into the corresponding metals during roasting. When does it happen so?

Two electrolytic cells containing silver nitrate solution and dilute sulphuric acid were connected in a series. A steady current of 2.5 A was passed through them till 1.078 g of silver was deposited ( Ag = 107.8 g //" mol" ) (a) How much electricity was consumed? (b) What is the weight of oxygen gas liberated during the reaction?

List the two main propositions of Oparin and Haldane.

How do mRNA, tRNA and ribosomes help in the process of translation?