Drosophila Mauritiana and D

question 91

Multiple Choice

Drosophila mauritiana and D.melanogaster diverged 2 million years ago.Between these species, 40 nucleotide differences have accumulated at a gene.At that same gene, D.mauritiana and D.simulans have accumulated 8 nucleotide differences.Assuming that a molecular clock is operating, the best estimate for the divergence time between D.mauritiana and D.simulans is _______ years ago.

• A) 100,000
• B) 200,000
• C) 300,000
• D) 400,000
• E) 800,000

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Definitions:

Purchase Price

The amount paid to buy an asset or security, which can influence the investment's potential return and tax implications.

Face Value

The nominal or dollar value printed on a security or bond, representing the amount the issuer promises to pay at maturity.

Zero-Coupon Bonds

Bonds that are sold at a discount and pay no regular interest payments but are redeemed at their face value at maturity.

Yield To Maturity

The total return expected on a bond if held until its maturity date, accounting for its current price, interest payments, and face value.