Exam 10: Gene Control

Researchers tend to name genes based on what happens in their absence.The tinman gene in Drosophila results in flies

Repressors

MATCHING Choose the one most appropriate answer for each. a.a condensed X chromosome b.protein that combines with DNA all along its length c.attaches or detaches from operator to regulate transcription d.portion of the operon that binds RNA polymerase e.gene capable of inducing cancerous transformations f.genes controlling the development of the body plan g.the mutated form is associated with breast cancer h.binding sites on DNA where certain regulatory proteins increase transcription rates -Barr body

Mutation of the C group gene in Arabidopsis thaliana produces flowers that

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -The __________ governs expression of three genes active in lactose metabolism.

MATCHING Choose the one most appropriate answer for each. a.a condensed X chromosome b.protein that combines with DNA all along its length c.attaches or detaches from operator to regulate transcription d.portion of the operon that binds RNA polymerase e.gene capable of inducing cancerous transformations f.genes controlling the development of the body plan g.the mutated form is associated with breast cancer h.binding sites on DNA where certain regulatory proteins increase transcription rates -promoter

Transcription factors include all of the following EXCEPT

The promotion of the lactose operon in bacteria is

Which of the following is the binding site for RNA polymerase on the DNA molecule?

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -The product of this item can inactivate a gene.

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -This item codes for the production of a repressor.

MATCHING Choose the one most appropriate answer for each. a.a condensed X chromosome b.protein that combines with DNA all along its length c.attaches or detaches from operator to regulate transcription d.portion of the operon that binds RNA polymerase e.gene capable of inducing cancerous transformations f.genes controlling the development of the body plan g.the mutated form is associated with breast cancer h.binding sites on DNA where certain regulatory proteins increase transcription rates -enhancer

The following questions refer to the figure above. -The prokaryote operon model explains gene regulation at the level of

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -A repressor protein can shut down transcription by binding to this item.

Repressor proteins

The mosaic effect of X inactivation in human females can be observed in

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -Knockout experiments involving __________ genes in fruit flies (Drosophila melanogaster) revealed local controls over gene expression.

Classification.Choose the proper item below for the following statements. a.operon b.operator c.promoter d.lactose e.regulator gene -As cell lineages use varying subsets of genes during development, they become specialized through a process called __________.

Cell differentiation accounts for cells of an organism becoming different in

MATCHING Choose the one most appropriate answer for each. a.a condensed X chromosome b.protein that combines with DNA all along its length c.attaches or detaches from operator to regulate transcription d.portion of the operon that binds RNA polymerase e.gene capable of inducing cancerous transformations f.genes controlling the development of the body plan g.the mutated form is associated with breast cancer h.binding sites on DNA where certain regulatory proteins increase transcription rates -control over enzyme activity