DBT BET JRF Model Question Paper Set-4 (2019)

In a covalently closed circular DNA molecule, if the linking number (L) is equal to Twist (T), then the Writhe is equal to _________:

The linking number of DNA is 9 with writhe ‐1, the number of twists is:

The DNA is destabilized by:

The deoxy position of deoxyribose in DNA is at:

The precursor for most of the phenolic secondary metabolites is:

Among the following which is a terpene?

The main alkaloid obtained for Dioscorea deltoidea is:

The repeating structure common in Hemoglobin, Chlorophyll and Cytochrome is:

Red wine and red grapes are important sources of which pharmacologically important compound?

Chitin occurs in the cell wall of:

Which of the following monosaccharide pairs are epimers?

Which of the following is a hydrated polymer?

Which of the following statement is NOT correct for vitamin D?

Fat-soluble vitamins involved in bone formation and blood clotting are:

The precursor of bile salts, sex hormones and vitamin D is: