What Would Be an External Source of Ionizing Radiation

question 7

Multiple Choice

What would be an external source of ionizing radiation?

• A)a needle containing a radioisotope implanted beside the tumor
• B)gamma rays delivered by a cobalt machine
• C)a dose of a radioactive drug to be ingested
• D)a fluid containing radioactive material instilled in a body cavity

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Definitions:

Dominant Gene Pair

is two alleles of a gene where both are dominant, leading to the dominant trait being expressed in the organism.

Recessive Gene Pair

Two copies of a gene on a chromosome that must both be present for a recessive trait to be expressed.

Extra Chromosome

An abnormal condition where an individual has more than the usual number of chromosomes, leading to genetic disorders.

Mental Retardation

This term, now considered outdated and offensive, was formerly used to describe developmental delays in intellectual functioning and adaptive behavior. The more accepted term is "intellectual disability."