Since, the options are not given the question is incomplete. The complete question is as follows:
Unbeknownst to her or her care team, a 51-year-old woman's breast cancer has an etiology rooted in the fact that tumor suppressor genes are present but have been silenced. Consequently, she has not synthesized normal cancer-suppressing proteins and neoplasia has resulted. What process has accounted for the woman's cancer?
A. Chromosomal translocation
B. The “two-hit” hypothesis of carcinogenesi
s
C. Epigenetic mechanisms
D. A DNA repair defect
Answer: C. Epigenetic mechanisms
Explanation:
In cancer epigenetics the modification of the DNA of the cancer cells occur which will not cause the change in the nucleotide sequence rather it will affect the way, through which the genetic code is being expressed in the body. In cancer different type of epigenetic mechanisms can result which may cause silencing of the tumor suppressor genes, modification of the histone, dysregulation of proteins of DNA, alteration of the methylation pattern of DNA.
According to the given situation, is an example of the epigenetic mechanism of cancer. This is because the tumor suppressor genes of cancer cells are present but these are silenced, that is they are non-functional as a result of this the cancer-suppressing proteins will not be synthesized in the body. This entire condition will be contributing to the neoplasia.
Answer:
The effects of moderate alcohol consumption include the reduction of mortality. Secondly, it reduces the risk of heart disease and is known to help with digestion and blood flow. Heavy alcohol consumption juxtaposed with liver failure and early death. It affects the brain, kidneys, liver and lungs. Alcohol poisoning occurs and can kill the individual. Liver failure, cancer or car accidents are other leading causes of heavy alcohol consumption.
Explanation:
Answer:
The different skeletal muscle fiber types vary in the speed and duration of their twitches due to -
b) They vary in the rate of hydrolysis of ATP
c) They vary in the removal of Ca+ from the cytosol
Explanation:
There are mainly two types of muscle fibers , i.e.
a) slow twitching, long contraction duration( type I fibers)
b) First twitching but short duration of contraction. ( type II fibers).
Now think of the physiology of muscle. Two components are important, cytosolic Ca++ concentration and Availability of ATP. K+ is related to the action potential ( none or all law, there is no relation to the duration with respect to the potassium). For long contraction muscle fibers need a more steady supply of ATP, and also consistent high concentration of cytosolic Ca++ for muscle contraction to happen. So, these two factor is important for the duration of twitching. So the answer is option f .
Given what we know, we can confirm that for a preterm newborn like the one described in the question, a size 00 laryngoscope blade is recommended.
<h3>Why use a size 00 blade?</h3>
- This is the most precise and gentle blade available.
- It is also the only blade small enough for such a low-weight infant.
- For infants that have such a low estimated birth weight, a size 00 is indicated.
- This will allow the most precautions to be taken while performing the procedure.
Therefore, we can confirm that for a preterm newborn like the one described in the question, a size 00 laryngoscope blade is recommended due to its <u>low estimated </u>birth weight.
To learn more about laryngoscope blades visit:
brainly.com/question/4516272?referrer=searchResults
All of the above u believe
