Biology

Enhancers are said to be cis-acting. What is meant by cis-acting, and what are enhancers?

Started by bio_gurl

In what way is 5-azacytidine used (experimentally) in the treatment of sickle-cell anemia?

Started by bucstennis@aim.com

In what way can 5-azacytidine influence transcription?

Started by panfilo

List at least three levels or types of genetic regulation in eukaryotes.

Started by KWilfred

Because of the imprecision of molecular joining, recombination between LV and J regions shows ...

Started by neverstopbelieb

UASs (upstream activating sequences) are DNase hypersensitive. This means that ________.

Started by Charlie

What is the general position of the consensus sequence called the GC box? What is its sequence?

Started by Davideckstein7

Channels between chromosomes in the interphase nucleus are called ________.

Started by joesmith1212

In what way do upstream activator sequences (UASs), regulatory sequences in yeast, differ from ...

Started by iveyjurea

The trp and lac operons are both subject to forms of control that are typically called negative.

Started by vicky

Attenuation is known to occur in the lac operon.

Started by tiffannnnyyyyyy

Regarding the lactose utilization system in E. coli, a gratuitous inducer is a molecule that is ...

Started by NguyenJ

Regarding the lactose utilization system in E. coli, a constitutive mutant is one in which the three ...

Started by javeds

Regarding regulation of the trp operon, what might one appropriately call the amino acid tryptophan?

Started by moongchi

Within the control region of the trp operon is a section of DNA that is sensitive to levels of ...

Started by silviawilliams41

Regarding the trp operon, trpR maps to a considerable distance from the structural genes. The ...

Started by nramada

The catabolite repression system in E. coli essentially represses the lac operon when glucose is ...

Started by Chelseaamend

Explain why lacOc mutations are cis-acting while lacI mutations can be trans-acting.

Started by mckennatimberlake

What is the function of the lacY gene in the lac operon?

Started by james

A constitutive mutation in the lac operon may be of several types. Name two types of constitutive mutations.

Started by colton

Describe what is meant by a gratuitous inducer. Give an example.

Started by kshipps

What two important domains within a riboswitch involve the ligand-binding site?

Started by jon_i

Genetic regulation in prokaryotes can involve alterations in RNA secondary structure. What ...

Started by laurencescou

IS (insertion sequences) elements are stable DNA occupants of prokaryotic genomes that are not found ...

Started by bucstennis@aim.com

Pyrimidine dimers are typically caused by the mutagen 2-aminopurine.

Started by corkyiscool3328