When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?

#Question id: 3787

#Section 3: Genetics, Cellular and Molecular Biology

A biochemist isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. When she adds some DNA to the mixture, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture?

#Question id: 3788

#Section 3: Genetics, Cellular and Molecular Biology

The spontaneous loss of amino groups from adenine in DNA results in hypoxanthine, an uncommon base, opposite thymine. What combination of proteins could repair such damage?

#Question id: 3790

#Section 3: Genetics, Cellular and Molecular Biology

Semiconservative replication of DNA means that:

#Question id: 3791

#Section 3: Genetics, Cellular and Molecular Biology

 In vitro systems used to study replication must include all of the following except:

#Question id: 3792

#Section 3: Genetics, Cellular and Molecular Biology

Strain introduced by unwinding DNA at the replication forks is relieved by

#Question id: 3793

#Section 3: Genetics, Cellular and Molecular Biology

A replicating prokaryotic chromosome has _________ replication forks, and a replicating eukaryotic chromosome has ___________.