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Purines and pyrimidines form glycosidic linkage with the purines and pyrimidines at the N6 position.
Substitution of a purine by a purine, of a pyrimidine by a pyrimidine, and of a base-pair by another base-pair which retains the original orientation of the purines and pyrimidines belongs to the class known as
Consider the following statements regarding the historical aspects of DNA and choose the correct answer:
1. Meischer isolated nucleic acids, which he called nuclein
2. Altmann used the term nucleic acid to replace nuclein
3. Fischer identified pyrimidines and purines
4. Griffiths discovered bacterial transformation by DNA
In DNA molecule, the amount of purines is equal to the amount of pyrimidines.
In a double stranded molecule of DNA, the ratio of purines : pyrimidines is
Which of the following can be true for selecting base learners for an ensemble?
1. Different learners can come from same algorithm with different hyper parameters
2. Different learners can come from different algorithms
3. Different learners can come from different training spaces
Which of the following statements are correct? a. HF and H2O are polar molecules. b. CH4 and CO2 are non-polar molecules. c. CO2 and SO2 are non-polar molecules.
Consider the following statements regarding water: 1. Water is an polar molecule 2. Water molecules align themselves in an electric field 3. Water molecules vary their alignment if the applied electric polarity changes with time  4. Water molecules align themselves in an magnetic field Which of the above statements are correct?
With reference to the movement of molecules of fluid in plant, consider the following statements.
1. Diffusion is the movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration.
2. Osmosis is a process in which the water molecules move through a semipermeable membrane from the region of their lower concentration to the region of their higher concentration.
Which of the statement(s) given above is/are correct ?
Out of 38 ATP molecules produced per glucose, 32 ATP molecules are molecules are formed from NADH/FADH2 in