A vitaminoses is defined as the condition of vitamin deficiency. A lack of one or more vitamins leads to characteristic deficiency symptoms in man. Multiple deficiencies are caused by the lack of more than one vitamin.
The deficiency disease caused by lack of vitamin A is night blindness, and retarded growth. The deficiency disease caused by lack of vitamin K is increased time of blood clottings and hemorrhagic condition.
Explain the following:
Glucosides react neither with Fehling solution nor with Tollen's reagent. They also do not allow mutarotation.
Explain the following:
Glucose responds Fehling solution and osazone, it does not react with Schiff’s base and sodium bisulphite.
What are forces holds the two strands of DNA together in a double-helix structure? Draw structure to show the bonding between adenine and thymine, and between guanine and cytosine.
What is melting temperature (Tm) of DNA? A DNA molecule with more number of GC base pairs than AT base pairs has higher Tm than the one with lesser number of GC base pairs than AT base pairs. Explain why?
Which vitamin is called ascorbic acid? What are its physiological functions? Which disease is caused by the deficiency of this vitamin?
Explain the following:
Although fructose does not have an aldehydic group, it reacts with Fehling solution.
