Q. Which of the following is false about introns?

View solution

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

View solution

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

View solution

Q. Short interspersed elements are about

View solution

Q. Long interspersed elements are about

View solution

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

View solution

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

View solution

Q. Over-twisting of a molecule results in

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Under-winding is measured in terms of

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Which of the following are essential to the condensation of chromosomes as cells enter mitosis?

View solution

Q. Chromatin is composed of

View solution