Sdna is comprised of two polynucleotides thus dna is

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DNA is comprised of two polynucleotides, thus DNA is described as being double a stranded molecule. The two strands of DNA are not covalently bonded however, so DNA is really two molecules, but we will always refer to it as one molecule. The DNA polynucleotide is comprised of four different nucleotides.

Q1. What does DNA stand for? Where does it get that name?

Q2. What are the names of the four bases of which DNA is comprised?

Q3. Which are pyrmidine bases; which are purines?

Q4. What kinds of bonds occur between individual nucleotides; which kind occur between the two strands of DNA.

Q5. Which base pairs are complementary in a double stranded DNA molecule? (Two complementary bases is called a basepair.)

Q6. DNA is a bidirectional molecule. From where does the terminology 5' and 3' come?

Reference no: EM13454862

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