7. DNA and Chromosome Structure
Alternative DNA Forms
7. DNA and Chromosome Structure
Alternative DNA Forms
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Practice this topic
- Multiple Choice
Which of the following types of DNA is the most common DNA form?
- Multiple Choice
Which of the following types of DNA is characterized by a left-handed helix?
- Open QuestionConsidering the information in this chapter on B- and Z-DNA and right- and left-handed helices, carefully analyze structures (a) and (b) below and draw conclusions about their helical nature. Which is right handed and which is left handed?
- Open QuestionDNA and RNA are chemically very similar but are distinguished, in large part, by the presence of a 2'-OH group in RNA and a 2'-H group in DNA. Why do you suppose that both DNA and RNA have 3'-OH groups and we do not typically find nucleic acids within cells that have 3'-H groups?