Question

The effect of today’s radioactive fall out will probably be more harmful to the children of future generations than the present day because:-
A. Infants are more susceptible to radiation.
B. Sustainable of radiation also increases with age
C. Mutated genes are always recessive
D. All of the above.

Answer 1

Hint: The radioactive radiations cause genetic mutations that are permanent and inherited from one generation to the next generation.

Complete answer:1. If we gave an equal dose of radioactive radiation to the child and an adult then the child has shown more adverse and quick effects on the child as child cells are more growing and children grow quickly also their cells are more sensitive to the radiation. Hence in adults, the effect of radiation takes years to develop whereas in children they will grow quickly.
2. The radioactive radiations cause mutation in the genetic material and cause several changes in the sequence of the DNA. These mutations are often recessive in nature so the chances of travel from one generation to next increases and the recessive change can appear in any future generations.
3. Due to the Nuclear bomb used by the USA on Hiroshima and Nagasaki, the genes of the people that live in that area get mutated and the mutant genes are recessive so the effects of that mutations are shown in today’s population too. The children that are born in today’s period also suffer the effects of the radiation that are released years of age.
Hence the Future generation faces more effect of the radioactive radiation due to the Mutated genes are recessive in nature due to which it shows it’s a character in future generations.

So the correct answer is C. Mutated genes are always recessive

Note: Recessive genes always show their character when present in a homologous condition so the chances of mutated character in future generations increases.