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The regulation of replication is essential to genomic stability, and, normally, the DNA is replicated just
once every eukaryotic cell cycle (in the S phase). Normal cells produce protein A, which increases in
concentration in the S phase. In cells that have a mutated copy of the gene for protein A, the protein is
not functional and replication takes place continuously throughout the cell cycle, with the result that
cells may have 50 times the normal amount of DNA. Protein B is normally present in G1 but disappears
from the cell nucleus in the S phase. In cells with a mutated copy of the gene for protein A, the levels of
protein B fail to disappear in the S phase and, instead, remain high throughout the cell cycle. When the
gene for protein B is mutated, no replication takes place.
Propose a mechanism for how protein A and protein B might normally regulate replication so that each
cell gets the proper amount of DNA. Explain how mutation of these genes produces the effects just
described.
Let D represent the defective cell phone and N represents the non – defective cell phone. If we let X be the random variable representing the number of defective if three cell phones are tested at random, show the values of the random variable X?
Use Laplace transform method to find the solution of linear ordinary differential equation (d ^ 2 * x)/(d * t ^ 2) - 2 * (dx)/(dt) + x = e ^ t epsilon = 2, (dx)/(dt) = - 1 with at t = 0
In a survey of 458 random households, people take pride in discussing their methods of environmental protection. 236 manage their trash by separating biodegradables from non-biodegradable. Biodegradables are converted into fertilizers while non-biodegradable are disposed of properly. Use a 95% confidence to estimate the proportion of all households who have good practices of trash management.
p =
E =
Lower Confidence Limit =
Upper Confidence Limit =
2 charged particles reacted with a force of 0.31 N with a distance of 1.5 cm, the 2nd charge contains 54 nC. Find the value of the first charge
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 80.OnC. The plates are in vacuum. The electric field between the plates has a magnitude of 4.00 * 106V / m . What is the potential difference between the plates?
The molal boiling point constant of water is 0.512ºC/m. If 1 mol cane sugar (342g/mol) is dissolved in 1kg water, the solution will boil at 100.512ºC, assuming standard pressure. By this relationship, half of a mole of sugar (171g) would boil at 100.256 C/m and 2 mol sugar (684g) should boil at 101.024ºC/m. However, these are not necessarily solutions that can be mixed; 684g of sugar is nearly a pound and a half of sugar, which you are supposed to dissolve in a liter of water!
From the given situation above, why is it important to understand the constants relating to water?
The molal freezing point of water is 1.86ºC/m (1.86K/m), which can be expressed as 1.86ºC ● kg H2O/mol solute (1.86K ● kg H2O/mol solute) after some algebraic rearrangement. This means that a solution of 1 mol cane sugar (342g, over 3 4 lb) dissolved in 1kg of water should freeze at -1.86ºC.
Describe the freezing point drop suggests in number 1.
1. Which of the following statement is not correct about k-means?
a)Accuracy of cluster are improved by scaling of attributes.
b)K-means clusters are affected by outliers.
c)K-Means clustering is NOT influenced by initial centroids which are called cluster seeds
d)Number of clusters to be built is typically an user input and it impacts the way clusters are created
Give two examples of alloys alongwith their compositions and uses.
#339914 on Dec 2023