Why can't insulin be given orally to diabetic patients?

Name the class of enzyme that usually catalyze the following reaction :

$$S-G+S^{\#} \rightarrow S+S^{\#}-G$$

Where, G $\rightarrow$ a group other than hydrogen

$$S \rightarrow \text { a substrate }$$

$$S^{\#} \rightarrow \text { another substrate }$$

Given below are two statements:

Statement 1 : The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA.

Statement II : Smaller size DNA fragments are observed near anode while larger fragments are found near the wells in an agarose gel.

In the light of the above statements, choose the most appropriate answer from the options given below :

The correct sequence of events in the life cycle of bryophytes is

A. Fusion of antherozoid with egg.

B. Attachment of gametophyte to substratum.

C. Reduction division to produce haploid spores.

D. Formation of sporophyte.

E. Release of antherozoids into water.

Choose the correct answer from the options given below :