Beckers World of the Cell Study Set 1

The DNA polymerase reaction occurs in the ________ as incoming nucleotides are added to ________ end(s)of the growing DNA chain.

The energy needed to polymerize DNA is supplied by

In DNA replication,the leading strand of DNA ________,while the other newly forming strand,called the lagging strand,________.

The most common form of spontaneous replication error is

Strand slippage results in ________,which can cause a number of human diseases such as fragile X syndrome.

DNA replication is

Which of the following do not undergo theta replication?

DNA replication

Each of the following are associated with replicons except

A NASA probe returned samples of rocks from the surface of Mars.From these rocks,a prokaryotic organism was isolated and remained viable under conditions similar to those of Mars.The organisms are capable of dividing to replicate themselves.In order to determine whether the DNA replication of these organisms was semiconservative,an experiment using N15/N14 (similar to that of Meselson and Stahl)was performed.If the method of DNA replication were conservative,after one generation one would expect to see

An isolate of a mutant bacterium appears to grow more slowly than the wild-type population from which it was isolated.Further studies showed that the slower growth was due to a markedly reduced DNA polymerase I activity.From this information,one would expect that this organism would also be deficient in the activity of DNA

Spontaneous hydrolysis reactions between DNA and surrounding water molecules commonly cause

Deamination is a spontaneous DNA mutation that converts cytosine to

Thymine is used in DNA despite the fact that it is energetically more expensive to synthesize than uracil because

Ultraviolet (UV)light-treated bacteria would have increased DNA damage in the form of

DNA damage can occur

Base-modifying chemicals such as aflatoxin B₁ or nitrosoguanidine cause mutations by

Insertion and deletion mutations can be caused by

DNA repair in eukaryotes and prokaryotes

Which of the following proteins is observed exclusively in association with prokaryotic DNA replication?