Answer:
The correct answer is B
Explanation:
Transposons need to regulate their copy number to avoid errors with chromosomal pairing during meiosis and mitosis such as unequal crossover.
A typical example of this error is called the Alu Sequence or Elements. Alu elements contain more than one million copies found everywhere in the genome of human beings.
Many inherited human diseases such as cancer are related to Alu insertions.
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Answer: c. 0.15%
Explanation:
The blood alcohol concentration or BAC refers to the percentage of alcohol present in the bloodstream. The value of blood alcohol concentration of 0.15% is very high. It will affect the balance of voluntary muscles, walking and talking will also become difficult. The person will experience a severe increase in the rate of heart, the body temperature will rise, the person will experience irregular breathing and the bladder control will become weak.
Cryogens and dry ice are cryogenic substances that cause skin related problems if not handled carefully. These are extremely dangerous to touch and cause boiling of skin. The skin is severely damages if touched with naked hands.
Care should be taken while handling cryogens Use of specific gloves and personal protective equipments to cover yourself.
Answer: FALSE
The answer is Negative charges on phosphate groups repel each other. The oxygen groups of a phosphoanhydride in ATP have electron cloud that repels each other. On hydrolysis, once a phosphate is lost, the electrostatic repulsion is reduced.
When ATP is hydrolyzed, it forms more hydrogen bonds with surrounding water molecules that when ATP is unhydrolyzed. Therefore, more energy is released since more bonds are formed than are broken. The net delta G is positive during hydrolysis of ATP.
The condition of the AIDS (Acquired Immunodeficiency
Syndrome) is caused by a virus called HIV (Human Immunodeficiency Virus). The
virus itself attacking the definite type of immune system cell inside the body.
Its cell also known as the helper cells or CD4 helper lymphocyte cells particularly
in the adaptive immune system. HIV ruining these cells, it’ll make so hard for
the body to combat off and guard off other infectious diseases. When people
gets HIV, even slight infection like fever or colds can be much critical
because the body itself has difficulty healing. Hence, immune system of one’s
person will be lowered because the helper cells are slowly being destroyed and it
makes the person unsafe.
