Explanation:
Blood types are determined by the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body
Some antigens can trigger a patient's immune system to attack the transfused blood, safe blood transfusions depend on careful blood typing and cross-matching
There are four major blood groups determined by the presence or absence of two antigens: A and B on the surface of red blood cells
In addition to the A and B antigens, there is a protein called the Rh factor, which can be either present or absent creating the 8 most common blood types which are A+,A-.B+,B-O+,O-,AB+,AB-
Blood type is inherited and it is determined by the blood type of both father and mother
Blood type helps in DNA fingerprinting and forensic science and plays an important role in determining blood relations or to identify the suspect
Answer:
The correct answer would be lac repressor.
Lac repressor refers to the DNA binding protein which inhibits or prevents the expression of genes in the DNA of Lac Operon.
The lac repressor protein is expressed by the Lac regulatory region.
It binds to the operator region of the operon and prevents the binding of RNA polymerase.
The nutrient that can be found in all organic compounds is the carbon. The reason why carbon is found in all organic compounds is described below.
Organic compounds are those chemical compounds found in living organisms which are made up of carbon-hydrogen bonds.
Carbon is the main element in organic compound since it forms its bonds. Typical examples of these organic compounds are:
Therefore, The nutrient that can be found in all organic compounds is the carbon.
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Answer: True
Secondhand smoke is produced from the burning of the tobacco products such as cigars, cigarettes, bidis and pipes. This is smoke which is breathed out or exhaled by the smoking person. The smoke includes toxic gases. Smoking in the enclosed spaces such as homes, workplaces can be hazardous for the smoker as well as for the people present surrounding him or her. An appreciable amount of secondhand smoke in an enclosed space can cause ear infections, asthma attacks, respiratory attacks such as coughing, sneezing and labor breathing, respiratory infections such as pneumonia and bronchitis and a greater risk of sudden infant death is also associated with it.
On the basis of above description, the secondhand smoke is more dangerous in enclosed spaces is true.
True. Secondhand smoke, also known as passive or involuntary smoking, is more dangerous in enclosed spaces.
When someone smokes, the smoke released contains numerous harmful chemicals, including carcinogens, toxic particles, and gases. When this smoke is released into the air, it can linger and accumulate in enclosed spaces, leading to increased exposure for non-smokers in the vicinity.
In enclosed spaces like homes, cars, bars, restaurants, or other indoor areas with poor ventilation, the concentration of secondhand smoke can become significantly higher than in open, outdoor areas. Prolonged exposure to secondhand smoke in such environments poses serious health risks, particularly for vulnerable individuals such as infants, children, pregnant women, elderly people, and those with pre-existing respiratory or cardiovascular conditions.
Research has shown that secondhand smoke exposure can cause a wide range of health problems, including respiratory issues (such as asthma exacerbation and respiratory infections), heart disease, stroke, lung cancer, and even sudden infant death syndrome (SIDS) in infants.
To protect public health, many countries and regions have implemented smoking bans in enclosed public spaces and workplaces to reduce secondhand smoke exposure and its associated health risks. Encouraging smokers to smoke outdoors or in well-ventilated areas can help minimize the impact of secondhand smoke on non-smokers' health.
To learn more about Secondhand smoke, here
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