DNA Strands Can Be Pulled Apart by Adding Heat and "Melting

question 34

Essay

DNA strands can be pulled apart by adding heat and "melting" the double-stranded DNA.The temperature required to melt a region of DNA changes based on the base-pair composition.Based on the structure of the A-T and C-G bonds in Figure 1.11,which bonds would require more energy (heat)to break them? How might this help you predict which regions of the DNA helix may be the most stable and harder to break apart? (This can be used to predict regions that are not transcribed as often,as you'll see in later chapters.)

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Definitions:

Bond Premium

The amount by which the market price of a bond exceeds its principal amount or par value, often occurring when the bond's interest rate is higher than current market rates.

Effective Interest

The actual interest rate incurred on a loan or bond, reflecting the amortization of any fees or additional costs over the life of the loan.

Interest Revenue

Income earned from investments, loans, and other sources requiring the borrower to pay interest.

Bond Investments

Financial investments in debt securities issued by corporations or governments, which pay interest and are meant to be repaid at maturity.