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Raghad Alnajdawi
on Dec 27, 2024

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Following the death of their parents ten years ago, identical twins Glenda and Brenda were placed in an understaffed orphanage. Brenda remained in the orphanage while Glenda was adopted by a loving middle-class couple. Which of the following would be LEAST likely to occur?

A) Glenda will have a higher IQ than Brenda
B) Glenda and Brenda will have the same reaction range for intelligence
C) Brenda will have an IQ near the upper limit of her reaction range
D) Glenda and Brenda will have IQs that differ by ten or more IQ points

Reaction Range

The concept in genetics that an individual's phenotype (expressed traits) for a trait can vary within a range, depending on environmental conditions.

Identical Twins

Twins who develop from a single fertilized egg that splits, resulting in two genetically identical individuals.

Orphanage

A residential institution dedicated to the care of orphans - children whose parents are deceased or otherwise unable to care for them.

  • Determine the components impacting shifts in IQ, taking into account both environmental factors and hereditary contributions.
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Omara WilliamsDec 31, 2024
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