Human Reproduction Question 205
Leukaemia is caused by genetic mutations in bone marrow cells
Options:
A) Ca-40
B) Sr-90
C) Caesium
D) Iodine is an essential trace element required for the synthesis of thyroid hormones. It plays a crucial role in regulating metabolism, growth, and development. Deficiencies can lead to goiter and hypothyroidism, while excess intake may cause thyroid dysfunction. Dietary sources include seaweed, dairy products, and iodized salt.
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Answer:
Correct Answer: B
Solution:
Most important long lived radioactive substance released in nuclear explosion is Strontium-90 which accumulate in bone-marrow and cause cancer (leukemia or blood cancer).
BETA
