Nitrogenous bases which contain 2 heterocyclic rings are
4.Both 1 and 3
Cytidylic acid is
Which one is correct
1.Adenine = Pyrimidine, Uracil= Purine
2.Adenine= Purine, Uracil= Purine
3.Adenine= Adenylic acid, Uracil=Uridylic acid
4.Adenine= Purine, Uracil= Pyrimidine
Which of the following is true?
1. All the elements present in a sample of earth’s crust are also present in a sample of living tissue
2. Carbon and Hydrogen are present in more amount in any living organism than earth’s crust.
3. Carbon and Hydrogen are present in more in living organisms than in non living matter.
4. All of the above
The most abundant element present in human body is
Select the correct arrangement of elements present in human body
The least abundant element present in human body is
Which of the following element is present in negligible amount in human body?
When chemical analysis of living tissue was done using trichloroacetic acid, then then filtrate formed was
1.acid insoluble fraction
2. acid soluble fraction
4. Both A and C