Which of the following statements is INCORRECT regarding the assembly of DNA into higher-order chromatin structure?

I. Histone H1 is not part of the histone octamer, but binds to linker DNA and is responsible for higher-order chromatin structure.

II. The 30 nm fibers of a chromosome are attached to a/an RNA-protein scaffold that holds the fibers in large loops.

III. It is not possible for linear DNA to be supercoiled. Only circular DNA, which has no ends, can have regions of supercoiling.

IV. Core histones lacking their amino-terminal tails are capable of forming 30-nm fibers as they help to stabilize the 30-nm fiber in internucleosomal interactions.

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#Question id: 11558

#Unit 7. System Physiology – Animal

Analysis of a blood sample from a fasting individual who had not eaten for 24 hours would be expected to reveal high levels of ________.

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#Question id: 21244

#Unit 7. System Physiology – Animal

Which of the following parts of the eye has the greatest concentration of rods?

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#Question id: 356

#Unit 1. Molecules and their Interaction Relevant to Biology

How does 0.5 M sucrose (molecular mass 342) solution compare to 0.5 M glucose (molecular mass 180) solution?

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#Question id: 981

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is a method by which the synthesis of AMP or GMP is regulated?

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#Question id: 23838

#Unit 2. Cellular Organization

All Myosins(I, II &V) moves towards the;