Anne Is Investigating the Timing of the Onset of Puberty

question 98

Multiple Choice

Anne is investigating the timing of the onset of puberty in a large sample of adolescents.In her sample,she finds the correlation for identical twin pairs is almost twice that of fraternal twin pairs,which in turn,is almost twice that of singleton siblings.Based on this information,what can you conclude regarding the potential cause of pubertal timing?

• A) Heredity plays a strong role in physical maturation.
• B) Environmental factors play a strong role in physical maturation.
• C) Genetic regulation of hormones is the trigger for physical maturation.
• D) Environmental factors.

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Definitions:

Double

An increase by 100% or a factor of two in a particular measure or quantity.

Discount Rate

The interest rate used to discount future cash flows of a financial instrument to present value.

Redeemed

Redeemed refers to the action of exchanging a financial instrument, such as a bond or preferred stock, for cash or another form of value, often at its maturity or a predetermined price.

Bond

A promissory note issued by a business or a governmental unit.