Answer:
The correct answer is - Pleiotropy.
Explanation:
Pleiotropy is the number of disorders where multiple, and unrelated organ systems are affected in the body of an individual. Phenylketonuria (PKU) is the most cited example of pleiotropy in humans.
It is an inherited disorder that is caused by a deficiency of the enzyme phenylalanine hydroxylase due to mutation in the PAH gene, This enzyme is necessary to convert the essential amino acid phenylalanine to tyrosine. By this disorder, multiple organ systems are affected such as severe skin discolorations and foul odor, and other intellectual disabilities and behavioral problems.
It is very easy to make the difference:
A plant cell will have a cellulosic cell wall and chloroplaste inside the cells.
Animal cells don t have a celll wall and can modify the shape, and also don t have chloroplasts.
Answer and Explanation:
The microorganisms such as bacteria and fungi are basically composed of biological macromolecules (lipids, proteins, polysaccharides). As the temperature increases, the structure of proteins is disrupted and they lose their function. For example, enzymes that catalyze biological reactions are inactivated.
Therefore, wet heat sterilization is a process in which the material is heated during a certain time at a certain high temperature to destroy the microorganisms by producing the denaturation of structural proteins and enzymes.
Radiocarbon dating uses a radioactive isotope of the element carbon to determine the ages of old objects.
<span>The answer to the question, 'the concentration of the atomospheric carbondioxide is currently decreasing due to human activity, true or false, is false. Before the advent of industrialization, the concentration of the carbon dioxide in nature was biologically balance. With the coming of different industries, man by his activities started to add to the quantity of carbondioxide that exist in nature. Activities, such as burning of fossils fuels release carbon dioxide to the atmosphere in huge quantity, this upset the natural carbon cycle that exist in nature. Thus, the quantity of carbon dioxide in the atmosphere is been increased on a daily basis as a result of human activities. </span>
