Question

1) Upon transition of a GC-rich DNA fiber from the B- to the Z-form (e.g. upon adding 3 M NaCl), does the fiber get longer or shorter, and by what percentage?

2) How many different triacylglycerols containing both myristate and palmitate (and only these fatty acids) are possible?

Answer 1

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DNA full form is deoxyribonucleic acid. It is genetic material contain all information about genes and protein. Different types of DNA are A- DNA, B-DNA, Z-DNA.

Answer 1:

In B form the distance between two base pair is 3.4 Å while in Z form the distance increase to 3.7 Å. Therefore, the transition from B to Z form increases the fiber length. The length increase percentage will be 12.1