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BIOLOGY CH. 12

SECTION 5

QuestionAnswer
an ______ gene is one that is transcribed into RNA expressed
a group of genes that operate together is known as an ______ operon
the lac genes are turned off by _________ and turned on by the presence of ________ repressors, lactose
region of chromosome in an operon to which the repressor binds when the operon is turned off operator
most ___________ genes are controlled individually and have regulatory sequences that are much more complex that those of the _______ operon eukaryotic, lac
helps position RNA polymerase by marking the point at which transcription begins TATA box
area on gene where repressor binds and stops transcription operator
a DNA binding protein that stops transcription and turns off the gene repressor
controls the organs and tissues that develop in various points of the embryo, determines an animals basic body plan hox genes
t/f most hox genes are arranged in almost the exact order they are expressed in the body true
t/f no common patterns of genetic control exist because all these genes have descended from the genes of common ancestors false
Created by: ebony5407
 

 



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