0
The lactase gene (LCT) is primarily regulated at the transcriptional level. In humans, its expression is influenced by genetic variations in regulatory elements, particularly enhancers located upstream of the gene. These regulatory elements can be affected by factors such as age and diet, leading to variations in lactase production and lactose tolerance in different populations.
What else can I help you with?
Protein phosphorylating enzymes help regulated gene expression by?
protein activation
How is calcium regulated in the blood?
The body's calcium level is regulated by a gland in the endocrine system, it is called the Parathyroid Gland.
What is involved in regulating gene expression in prokaryotes but not in eukaryotes?
In prokaryotes, gene expression can be regulated directly at the level of transcription through operons, where multiple genes are controlled by a single promoter. This type of regulation is not as common in eukaryotes, where gene expression is typically regulated at multiple levels, including transcription, RNA processing, translation, and post-translational modifications. Additionally, prokaryotes lack the complexity of chromatin structure found in eukaryotic cells, which can also impact gene expression regulation.
Whats the function of the lactase substrate?
The function of the lactase substrate is to be acted upon by the enzyme lactase. Lactase breaks down lactose, the primary sugar found in milk, into its two component sugars, glucose and galactose, which can then be absorbed by the body for energy.
What is synthesized when a gene is expressed at the molecular level?
The expression of a Gene causes the synthesis of Its associated protein.
Does lactose intolerance result from a mutation in the gene that codes for lactase enzyme?
Yes, lactose intolerance can result from mutations in the gene that codes for the lactase enzyme, specifically the LCT gene. These mutations can lead to a decrease in lactase production after weaning, causing individuals to have difficulty digesting lactose, the sugar found in milk. In many populations, this decline in lactase production is a normal evolutionary adaptation, while in others, mutations that promote lactase persistence allow for continued digestion of lactose into adulthood.
Why is the digestion of milk affected by lactose found in the stomach?
Are you talking about lactose intolerance? If so, people are lactose intolerant because they do not have the enzyme lactase that is use to digest the lactose. The gene that codes for the lactase cease to be express when they get older . Other people keep expressing the gene for their entire life.
In both eukaryotes and prokaryotes gene experssion is primarliy regulated at the level of?
Gene expression can be controlled at any of several stages, which we divide broadly into transcription, processing and translation. Transcription often is controlled at the stage of initiation, or at termination but usually not controlled at elongation. In eukaryotic cells, processing of the RNA product may be regulated at the stages of modification, splicing, transport, or stability. Translation may be regulated, usually at the stages of initation and termination just like transcription. Gene expression can be controlled at any of several stages, as during transcription, processing and translation. Transcription often regulated at initiation and termination but elongation is usually not regulated. In eukaryotes cells, processing of the RNA product may be regulated at the stages of modification, splicing, transport, or at stability. Translation may be regulated at initiation and termination just like transcription.
A mutation in what results in lactose tolerance?
A mutation in the LCT gene, which is responsible for producing the lactase enzyme, results in lactose tolerance. This mutation allows individuals to continue producing lactase into adulthood, enabling them to digest lactose, the sugar found in dairy products.
What chromosomes are affected by lactose intolerance?
Lactose intolerance is primarily influenced by genetic variations in the LCT gene, which is located on chromosome 2. This gene encodes lactase, the enzyme responsible for breaking down lactose. Variants in regulatory regions upstream of the LCT gene, particularly in the MCM6 gene, also play a significant role in the persistence or non-persistence of lactase production. Thus, while the primary gene is on chromosome 2, the regulatory aspects involve additional genetic factors.
What does your data indicate about the optimum level for this lactase catalyzed reaction?
PH 9
Is it appropriate for euthanasia to be regulated by a state or should it be regulated at the national level?
It better be regulated by a state
Protein phosphorylating enzymes help regulated gene expression by?
protein activation
What is a set of genes whose transcription is regulated by an operator gene is called?
Operon
What is the first level of control of eukaryotic gene transcription?
The first level of control of eukaryotic gene transcription is at the initiation stage, where transcription factors bind to specific DNA sequences in the promoter region of a gene to recruit RNA polymerase and initiate transcription. This process is regulated by various factors including activators, repressors, and chromatin modifiers that influence the accessibility of the DNA to the transcription machinery.
Why did the glucose level of the whole milk increase after putting in lactase?
The glucose level of whole milk increased after adding lactase because lactase is an enzyme that breaks down lactose, the sugar present in milk, into its simpler components, glucose and galactose. When lactase is introduced, it catalyzes the hydrolysis of lactose, resulting in the release of glucose, thereby increasing the overall glucose concentration in the milk. This process effectively converts the lactose into more readily absorbable sugars, which can be beneficial for individuals who are lactose intolerant.
Which cat represents a coat pattern that is regulated by temperature?
The Siamese cat has temperature-sensitive pigment expression due to the albino gene. The coat pattern is a result of this gene because it is a defective form of tyrosinase that is regulated by the cat's body temperature.
