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Flashcards in Chapter 8 Questions Deck (9)
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1

What was the transforming principle?

It discovered that since DNase destroyed the transforming substance, the transforming substance was DNA.

2

Who demonstrated that DNA carried genetic information?

Hershey and Chase.

3

How is the nitrogenous base linked to the 1' carbon atom of the sugar?

Through a covalent bond.

4

How are polynucleotide strands connected?

Covalent, phosphodiester bonds.

5

What is on the outside and inside of the double helix?

The sugar phosphate linkages are on the outside and the bases are stacked in the interior.

6

How many H bonds does C and G have?

3

7

How does Z DNA differ from B DNA?

Z DNA forms a left handed helix.

8

What is the nucleosome made up of?

Two copies of each H2A, H2B, H3 and H4 histone proteins.

9

What are the characteristics of DNA sequences on telomeres?

One strand consists of G, A and T nucleotides, they consist of repeated sequences and one strand protrudes beyond the other, creating single stranded DNA at the end.