Chargaff analyzed the composition of DNA from various sources. Mention – InterviewSolution

InterviewSolution

1.

Chargaff analyzed the composition of DNA from various sources. Mention what were his implications from all his experiments.

Answer»

Implications proposed by Erwin Chargaff:

1. Purine and pyrimidine always occur in equal amount in DNA.

2. The base ratio i.e. A+T/G+C may vary in the DNA of different groups of animals and plants but the ratio remains constant for particular species.

Discussion

No Comment Found

Related InterviewSolutions

The total number of basic groups in the following form of lysine is : .
The total number of basic groups in the following form of lysine is
Dihydroxyacetone-3 phosphate and glyceraldehyde-3-phosphate are interconvertible. The enzyme responsible for this interconversion belongs to the cateogry ofA. isomerasesB. ligasesC. lyasesD. hydrolases.
Which of the following enzyme is a hydrolase ?A. AmylaseB. Histidine decarboxylaseC. Pyruvate carboxylaseD. Both (2) & (3)
Which one is diaminodiacrboxlic amino acidA. CystineB. LysineC. CysteineD. Aspartic acid
Lipids that insulate the nerve fibre areA. LecithinB. CholesterolC. SuberinD. Glycolipids
Match column I with column II and select the correct option from the given codes. `{:(" Column I",," Column II"),("(Category)",,"(Secondary metaboliteis)"),(A."""Pigments ",,(i)"Concanavalin A"),(B."" "Terpenoides",,(ii)"Monoterpenes, diterpenes"),(C."" "Alkalods",,(iii)"Morphine, codeine"),(D.""" Lectins",,(iv) "Carotenoids, anthocyanins"):}`A. `A-(iv), B-(ii), C-(iii), D-(i)`B. `A-(iv), B-(iii), C-(ii), D-(i)`C. `A-(iv), B-(i), C-(iii), D-(ii)`D. `A-(i), B-(iii), C-(ii), D-(iv)`
A secondary metabolite that acts as a toxin isA. CarotenoidsB. CurcuminC. AbrinD. Monoterpenes
The most abundant molecule in cell isA. WaterB. CarbohydratesC. LipidD. Protein
Lecithin is a ?A. carbohydratesB. hormonesC. vitaminsD. phospholipids