Practice Questions

TLS Online TPP Program

#Question id: 787

Which of the following statement is INCORRECT with respect to the structure of DNA?

#Part-B Specialized Branches in Biotechnology

Six adenosines in a row in a DNA helix produce a bend of about 18 degrees.
DNA was first isolated and characterized by Friedrich Miescher who called the phosphorus-containing substance “nuclein.”
It is the pentoses that define the identity of a nucleic acid not the nitrogenous bases.
The Z-DNA tracts do not play any role in regulating the expression of some genes or in genetic recombination.

More Questions

#Question id: 10511

#Part-B Specialized Branches in Biotechnology

Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?

#Question id: 10512

#Part-B Specialized Branches in Biotechnology

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,

#Question id: 10513

#Part-B Specialized Branches in Biotechnology

Which of the following major cyanogenic glycosides are derived from the Cassava?

#Question id: 10514

#Part-B Specialized Branches in Biotechnology

Volicitin was identified as the active substance in the form of

#Question id: 10515

#Part-B Specialized Branches in Biotechnology

Insect-derived elicitors is,

#Question id: 10516

#Part-B Specialized Branches in Biotechnology

Which one are consistent with an important defense-activating role in the regulation of antiherbivore defense mechanisms in plants.