Question

Given below is a heterogeneous RNA formed during Eukaryotic transcription : How many introns and exons respectively are present in the hnRNA ?

Study the items of Column-I and those of Column-II : Column-I: (a) RNA polymerase I, (b) RNA polymerase II, (c) RNA polymerase III Column-II: (i) 18s rRNA, (ii) SnRNAs, (iii) hnRNA Choose the option that correctly matches the items of Column-I with those of Column-II :

The process of copying the genetic information from one strand of DNA into RNA is termed as transcription. The principle of complementarity of bases governs the process of transcription, also except that uracil comes in place of thymine. Study the complete transcription unit given below and answer the following questions :

During the process of transcription, after binding to a promoter, RNA polymerase catalyses and makes the bases in the template strand of DNA available for base pairing, with the bases of :

What is a test cross ? How can we find out the zygosity of a plant by the use of test cross ?