Answer: Cytosine is methylated resulting in 5-methylcytosine. Then the gene expression will decrease.
Explanation: To find the answer, we need to know more about the methylation of cytosine.
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What is methylation of cytosine?</h3>
- Methylation means the addition of a methyl group on a substrate of an atom.
- It's a form of alkylation, here a methyl group replaces a hydrogen atom.
- Methylation of cytosine occurs at CpG palindrome in DNA.
- When cytosine is methylated to produce 5- methyl cytosine, which results in a decrease in gene expression.
Thus, we can conclude that, Cytosine is methylated resulting in 5-methylcytosine. Then the gene expression will decrease.
Learn more about the methylation of cytosine here:
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Answer
A molecule with seesaw molecular geometry has a bond angle of 90° and 120°.
Seesaw is a type of molecular geometry where there are four bonds attached to a central atom.
Bond is observed in the shape of playground seesaw that is why it is known as a seesaw bond.
Four bonds attached to the central bond formed results as tetrahedral or square planar geometry.
In see-saw, shape maximizes the bond angle of the lone pair and the other atoms in the molecule.
lone pair in the equatorial position offer 120 and 90-degree bond angles whereas bond angle will be 90-degree bond angles if placed at axial position.
Answer:
Coulomb's law of Electrostatic Force states that a charged particle attracts or repels other charged particles with a force which is directly proportional to the product of their charges and inversely proportional to the square of the distance between their centers.
Explanation:
A) 30 m/s
The problem can be solved by using the law of conservation of momentum. In fact, the total momentum falcon+pigeon before the collision must be equal to the total momentum falcon+pigeon after the collision:
where
mf = 0.480 g is the mass of the falcon
uf = 45 m/s is the initial velocity of the falcon
mp = 0.240 g is the mass of the pigeon
up = 0 is the initial velocity of the pigeon
v is the final combined velocity of pigeon+falcon
Solving the equation for v, we find
B) 480 N
The average force on the pigeon during the impact is given by
where
is the change in momentum of the pigeon
is the duration of the collision
here we have:
- Change in momentum of the pigeon:
- Duration of the collision:
So the average force is