A primitive eukaryote was discovered that displayed a unique nucleic acid as its genetic material. Analysis provided the following information: (a) The general X-ray diffraction pattern is similar to that of DNA, but with somewhat different dimensions and more irregularity. (b) A major hyperchromic shift is evident upon heating and monitoring UV absorption at 260 nm. (c) Base-composition analysis reveals four bases in the following proportions: Adenine = 8% Guanine = 37% Xanthine = 37% Hypoxanthine = 18% (d) About 75 percent of the sugars are deoxyribose, while 25 percent are ribose. Postulate a model for the structure of this molecule that is consistent with the foregoing observations.
A primitive eukaryote was discovered that displayed a unique
information:
(a) The general X-ray diffraction pattern is similar to that of DNA,
but with somewhat different dimensions and more irregularity.
(b) A major hyperchromic shift is evident upon heating and monitoring
UV absorption at 260 nm.
(c) Base-composition analysis reveals four bases in the following
proportions:
Adenine = 8%
Guanine = 37%
Xanthine = 37%
Hypoxanthine = 18% (d) About 75 percent of the sugars are deoxyribose, while
25 percent are ribose.
Postulate a model for the structure of this molecule that is consistent
with the foregoing observations.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps