Exam 12: Control of Gene Expression

The α-helical portions of the bZIP proteins ______.

What is the name of the linkage than holds the lactose disaccharide together?

What is the advantage of the highly condensed state of the DNA of mitotic chromosomes?

Which site in a bacterial operon is adjacent to or overlaps with a promoter?

Which two monosaccharides combine to form lactose?

What happens to membrane proteins that have been attached to a single ubiquitin molecule?

There are genes on the X chromosome that manage to escape inactivation. What particular genes are included in this group and what might be the reason that they remain activated?

Scientists can stain chromosomes from mitotic cells and photograph the chromosomes using a microscope. Each chromosome can then be cut out of the photograph, the chromosomes matched up in homologous pairs and placed in order of decreasing size. This methodcan be used to screen individuals for chromosomal abnormalities, like extra, missing or grossly altered chromosomes. What is such a picture called?

If an exon excised, what other RNA sequences will it be excised with it?

Genes are physically moved to sites within the nucleus called _________, where the transcription machinery is concentrated and within which genes involved in the same response tend to become colocalized.

What modification, targeting a protein for degradation, is usually recognized by the cap of a proteasome?

Which level of control of gene expression is defined as determining if a particular gene can give rise to mRNA and, if so, how often?

The oskar protein is required for the ________, which develop at the _______ end of the Drosophila larva.

What level of control of gene expression is defined as regulating whether or not a particular mRNA is actually used in protein synthesis and, if so, how long and for how long a period of time?

A complex of exonucleases that degrades mRNAs is called the ______.

When DNA-binding proteins are removed from immunoprecipitated DNA sequences and the DNA fragments precipitated by the antibody are subsequently sequenced directly to determine the genomic sites bound, the technique is called __________.

What distinguishes the regulatory, noncoding RNA that is suspected of being responsible for X chromosome inactivation from other noncoding RNA molecules?

Treatment of fragmented DNA with a particular transcription factor attached at a number of sites with antibodies against that transcription factor can permit _________.

Which is NOT an effect mRNA editing may have on a newly transcribed mRNA?

Messenger RNA editing is an example of gene expression at the _________ level.