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The genes that produce the enzymes needed to break down lactose are not expressed.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoa repressor molecule binds to a set of operators, the operon genes are not transcribed, and DNA containing the promoter twists into a loop. all of these happens
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What is the predominant food source of lactose?
The source of lactose is cow's milk.
Why is lactose fermentation common among enteric gram negative bacteria?
Probably because that is where the gram negative bacteria have found a food source. Lactose is not the perfered diet, but it works and they are most likely there because they can tolerate the environment, and survive (on lactose) when their #1 food source is not available.
What types of food are a good source of hydrogen?
There are different types of food that are a good source of hydrogen. This mostly includes sugars like lactose, fructose and sucrose among others.
What happens if you have too much lactose?
That depends if you're lactose intolerant or not. If you are then you end up with undigested food in your gut, which may lead to nausea, diarrhea, or vomiting. If you're not intolerant, then you just get fat.
What happens to an animal when it loses its food source?
If an animal loses their food source, in the wild, they will try to find a sustainable source to have food to survive. If they cannot find a worthy source of food/water, they starve or become dehydrated and pass away.
What happens if a red headed wood peckers food source disappeared?
they get extinct
What happens if ferret eat cat food?
A ferret can eat cat food, but not as a main source. They should be eating food made especially for ferrets only. A high quality kitten food can be a second source of food for ferrets.
What is a food example of disaccharide?
Sucrose, Lactose, Maltose
Lactose intolerance is related to which of these food groups?
milk
Why is the lac regulatory system important to bacteria?
The lac regulatory system is a vital part of the bacteria. This is because, the most common source of food is sugar lactose and it is required by the enzymes all the time.
What kind of food do toyger cats eat?
Possibly I think anything except for lactose things so they need to be lactose free
Why is lactose added to food?
In contrast with sucrose, lactose is less sweet and has the appearance of crystallised sugar. If used in any food as a sweetening agent, it does not hinder the sweetness of food products. Therefore the demand for lactose includes a variety of low-volume and special applications in the food industry. Lactose is used to improve the functionality of shortenings or to improve the taste of food products as an agglomerating or free-flowing agent. It is also used for flavours, enzymes, or pigments as a thinner. Lactose is also one of the main ingredients used to manufacture caramel flavours in confectioneries. Lactose has significant applications in pharmaceuticals, apart from the food industry, and is used as a carrier for drugs because it is safe, is available in a highly processed form, and helps to manufacture tablets of good quality. For More Details to learn about Lactose and its uses visit- Future Market Insights : Lactose Market F
