Q. The extra chromosomal, self-replicating, double stranded, closed, circular DNA molecules are called

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Q. Which out of the following statements is true about human genome?

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Q. Which of the following is false about introns?

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Q. Which of the two organelles contain their own DNA and ribosomes?

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Q. About what proportion of mitochondrial proteins are encoded by nuclear DNA?

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Q. Short interspersed elements are about

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Q. Long interspersed elements are about

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Q. The phenomenon of twisting around itself by a molecule to relieve helical stress is

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Q. When there is no net bending of the DNA axis upon itself, the DNA is said to be in a

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Q. Over-twisting of a molecule results in

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Q. Changing twist from relaxed state requires adding energy and increases the

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Q. The enzyme responsible for the removal of supercoiling in replicating DNA ahead of the replication fork is

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Q. The type of topoisomerases which generally relaxes DNA by removing negative supercoiling is

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Q. The type of topoisomerases that can introduce negative supercoils is

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Q. The type I enzyme(s) is/are

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Q. Under-winding is measured in terms of

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Q. Which type of supercoiling takes the form of extended right-handed coils?

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Q. The DNA threads which appear inside the nucleus at the time of cell division

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Q. Which of the following is not a major class of chromatin proteins?

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Q. Which of the following plays a substantial role in linking together sister chromatids immediately after replication?

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