14. DNA Replication

In the polymerization of DNA, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and which of the following atoms or molecules of the last nucleotide in the DNA strand?

The scientist/s that was/were given credit for first determining the structure of DNA is/are:

The scientist/s that used x-ray diffraction to help reveal the structure of DNA is/are:

Within a double-stranded DNA molecule, adenine (A) forms hydrogen bonds with thymine (T), and cytosine (C) forms hydrogen bonds with guanine (G). What is the significance of the structural arrangement?

Does the statement apply to DNA, RNA, or both?

a. Contains uracil

b. Usually double stranded

c. Found in the cytoplasm of eukaryotic cells

d. Contains thymine

e. Is made by transcription

f. Contains adenine

g. Made of nucleotides

h. Contains ribose

i. Contains phosphodiester bonds

j. Built in a 5' to 3' direction

How is a ribonucleotide different from a deoxyribonucleotide?

Which of the following forms ionic bonds with eukaryotic DNA and stabilizes it?

a. Chromatin

b. Bacteriocin

c. Histone

d. Nucleoid

Which of the following is a true statement concerning prokaryotic chromosomes?

a. They typically have two or three origins of replication

b. They contain single-stranded DNA

c. They are located in the cytosol

d. They are associated in linear pairs

This bacteriophage DNA molecule has been warmed. Label the portions that likely have a higher ratio of GC base pairs and the portions that have a higher ratio of AT base pairs.

Describe how DNA is packaged in both prokaryotes and eukaryotes.