Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?

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#Question id: 2720

#Unit 2. Cellular Organization

In one strand of a double stranded DNA the rate of occurrence of A is 3 times C in consecutive 10 bases. So how many G will be there in 100 base pairs of a DNA duplex? [Consider G=T in one strand].

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#Question id: 2721

#Unit 2. Cellular Organization

With respect to Histone H1 DNA packaging which of the following is false?

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#Question id: 2722

#Unit 2. Cellular Organization

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

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#Question id: 2723

#Unit 2. Cellular Organization

With respect to the solenoid model of nucleosome, which of the following is true?

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#Question id: 2724

#Unit 2. Cellular Organization

When DNA is compacted by histones into 10 nm and 30 nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. Which processes contribute to this dynamic activity?

TLS Online TPP Program

#Question id: 2725

#Unit 2. Cellular Organization

________ plays an important role in storing the energy needed for the unwinding of DNA during replication, recombination, repair and transcription.