Exam 10: DNA Structure and Analysis

DNA has no sulfur,and proteins have no phosphorus.

Briefly define transformation and describe the relationship between the phenomenon of transformation and the discovery that DNA is the genetic material in bacteria.

All other factors being equal,the renaturation of the three classes of complementary nucleic acid sequences occurs in what order,from fastest to slowest?

Hershey and Chase used labeled DNA and protein to determine that DNA is the genetic material in bacteria.

Describe four major functions of DNA in a cell.

Beatrice Mintz and others microinjected DNA into a fertilized mouse egg,which after reaching maturity could be transmitted to the mouse's offspring.What is the general term used to describe an organism that incorporates foreign DNA?

In RNA,uracil is present instead of the thymine in DNA.

Provide an overview of the structure of Z-DNA.

(a)Assume that A + T/G + C equals 0.5 in one strand of DNA.What is the ratio of these bases in the complementary strand? (b)If A + G/T + C equals 0.5 in one strand,what is the ratio of these bases in the complementary strand?

When and in which journal did Watson and Crick publish their now-famous paper entitled "Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid."

Assume that the molar percentage of thymine in a double-stranded DNA is 20.What are the percentages of the four bases (G,C,T,A)? If the DNA is single-stranded,would you change your answer?