A. The Frontal Bone
I hope this helps !!
- 20 cycles of PCR is necessary for the amplification target sequence
Mass is proportional to sequence length.
Let one base pair have mass M.
Thus,
will have mass 
And the 3.2kb target will have a mass of
For the total amount of amplified target sequence to constitute 50% (by mass) of the total DNA in the reaction mixture, it has to be amplified to such an extent that the total mass of the amplicon matter is also 
PCR amplification happens geometrically, doubling the DNA target with each cycle.
Thus, if the number of cycles in N,
Then,
For more information on cycles of PCR, visit
brainly.com/question/16701618
Answer: Can you actually get $2,500 on brainly
Explanation:
Drug Antagonism is when two drugs cancel out each other's effects on the body, for example, nicotine canceling out the beneficial effects of blood pressure medicine.
Drug Antagonism is an interaction between two or more medications that have diametrically opposed physiological effects. Drug antagonists may prevent or lessen one or more medications' ability to work. Chemical antagonism is the process by which a drug interacts chemically with either a chemical or another drug, resulting in a diminished or nonexistent effect.
When two medications operating on various receptors and pathways have opposing effects on the same physiologic system, this is referred to as physiologic antagonism. Drugs that form drug-receptor complexes with their targets but do not activate or activate a response are known as antagonists.
They can stop the endogenous activator from binding to the receptor, preventing proper action (zero efficacy).
Here is another question with an answer similar to this about how drugs cancel each other: brainly.com/question/3406901
#SPJ4
