Answer:
Genetic alteration probably refers to altering the DNA sequence present in the genes of chromosomes.
Explanation:
Genetic alternation occurs when the DNA of an organism gets altered due to any circumstance. Even a change in a single nucleotide can have devastating effects on the organism. It can occur due to mutations or physical factors like radiation, UV etc. Genetic alternations can be useful as well as harmful. Genetic alternation is also a source due to which variations might arise in a population and hence, it leads to biodiversity.
Chain reaction
Nuclear energy
Explanation:
Question 1:
Chain reaction:
A reaction in which when one occurs, it starts a series of other fission reaction is called a chain reaction.
Most nuclear reactions are chain reactions in which does not come to rest in one step like chemical reaction.
In nuclear reactions like which fusion and fission, one step leads to another until an atom attains stability or a stable product is formed.
The energy needed to sustain the chain process is produced in the previous reaction.
Nuclear energy:
The type of energy used in a nuclear power plant is called a nuclear energy. Nuclear energy is used to generate power in nuclear plant.
During a nuclear decay process, a huge amount of energy is released. This energy is channeled into electricity production and to do other useful works.
Nuclear energy is classified as a non-renewable source of energy.
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Is the letter D because your having half of their DNA. That's why your mother is contributing the Y chromosome and your father is contributing the X chromosome
A fossil record is evidence for evolution because you can compare the fossiles to see the difference. You can tell how "survival of the fittest" played a part, and what characteristics the species had to help them survive in their environment.
The electrons that chlorophyll loses in the electron transport chain are replenished by water molecules. These water molecules degrade releasing oxygen and hydrogen, the electrons are then supplied to the electron deficient chlorophyll molecules located in the reaction centre of the Photosystem.
