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which part of an operon acts as the on or off switch?
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∙ 12y ago
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Why doesn't a multicellular organism continue to grow in size?
they are limited to their size of their enviormement with a internal switch that tells them to stop growing when a specific number of cells already exist. cancer is a result of broken off switch.
What is luxCDABE?
luxCDABE is the name of a bacterial operon. It is a sequence of genes whoms gene product produce blue light. If you put this piece of genetic material inside a bacteria, it will light up in blue.
How do you charge the black spider helicopter?
Install batteries in the charging case (with adult supervision), and plug the small cable in the side of the copter. Turn the switch on the case on. The switch should be flashing red. When charging is complete, it will flash green. NOTE: charging takes awhile. About 30 minutes to an hour from my knowledge
Can a male stop from nutting once he has started?
No. An orgasm could be decreased in length and strength due to a distraction. However, once the muscles begin to pump it can't naturally be shut off like a light switch.
What are some inherited behaviors of lions?
How it acts
Why lac operon the gene expression is switch off?
explain the regulation of gene expression in lac operon.
What are the roles of allolactose in the lac operon and tryptophan in trp operon?
allolactose acts as an inducer
What turns the lac operon on and off?
The lac operon is turned off and on by repressors.
What acts as a co-repressor to block transcription of the tryptophan operon?
Tryptophan
What turns the lac operon off and off?
Repressors
The tryptophan operon is a repressible operon that is?
Turned off whenever tryptophan is added to the growth medium
Does a transistor in cut-off region acts as an open switch?
No
The lac operon is shut off when what is absent?
Lactose is absent
When operated in cut off and saturation mode the transistor acts like what?
switch
The lac operon enables a bacterium to build the proteins needed for lactose metabolism only when?
Lactose is present, otherwise the lac operon is not needed and is shut off.
How is lac operon different from trp operon?
1. in lac operon; gene activity is induced when lactose is present in the medium, whereas in case of trp operon, repression of the gene activity takes place in presence of tryptophan in the medium. 2. lac operon spans about 4-6kb...whereas trp operon spans abut 7kb. 3. lac operon helps in the breakdown of lactose into glucose and galactose, to generate energy( catabolic pathway ) in case of trp operon, it helps in the synthesis of enzymes required for the formation of the amino acid Tryptophan( anabolic pathway ). 4. lac operon is an example of positive regulation ; and trp operon is an example of negative regulation. Trp operon is also regulated by other mechanism called attenuation while no such even occurs in lac operon . .
What is a device made of semiconductor material that acts like a switch controlling the flow of electrons in a chip?
if a diode is in forward biased the diode acts as switch is on and when we apply the diode in reverse biased then it work as the switch as off.
