Lactase refers to an enzyme that can dissociate lactose sugar into glucose and galactose. This enzyme plays an important role in the digestion of milk that comprises high lactose sugar. In case, if a mutation occurs in the gene codon of lactase, then two possibilities can take place. These are as follows:
1. Loss of mutation: In this case, the person becomes lactose intolerant because of mutation in lactase gene codon. Due to this, there is low mRNA expression and thus low production of the enzyme lactase. This is also known as lactase non-persistent phenotype.
2. Gain in mutation: In this case, the person gain an increase in mRNA expression of the lactase gene, thus more production of lactase takes place than usual. This kind of individual exhibits lactase persistent phenotype.
<h2>Answer:</h2><h3>Part 1.</h3>
After one mitotic division, end result will be two cells.
<h3>Explanation:</h3>
Because mitosis is a cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
<h3>Part 2:</h3>
There will be 12 chromosomes in each daughter cell.
<h3>Explanation:</h3>
Because number of chromosome remain same (diploid) in mitosis.
Answer:
F = 25000 N
Explanation:
It is given that,
Pressure exerted by the object, P = 1000 Pa
Area of cross section, A = 25 m²
We need to find the force exerted on an object. The pressure exerted by an object is equal to the force acting per unit area. So,
So, the force exerted on an object is 25000 N.
The question is asking to state the electrical charge that is present on the nylon strip and base on my research and further investigation, I would say that the electrical charge would be static energy.
