Multiple Choice QuestionsIn the lactose operon of Escherichia coli what is the function of promoter
Binding of Gyrase enzyme
Binding of RNA polymerase
Codes for RNA polymerase
Processing of messenger RNA
Chromosomes can be stained with one of the following chemicals
acetocarmine
safranine
light green
eosin
In a DNA molecule, distance between two bases is
2 nm/ 20 Å
0.2 nm/ 2 Å
3.4 nm/ 34 Å
0.34 nm/ 3.4 Å
C.
3.4 nm/ 34 Å
DNA is a double-stranded polynucleotide arranged in a double helix. The two strands are entwined around one another, each complete coil measures 3.4 nm (10 bases long). Each strand links to the other by pairs of organic bases, where the pairings are always cystosine with guanine and thymine with adenine. The two strands that form the uprights run antiparallel, ie, in opposite directions.
Balbiani rings are the sites of
DNA replication
RNA and protein synthesis
synthesis of lipids
synthesis of polysaccharides
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