During DNA Replication, the Synthesis of the New Strand Requires

question 18

Multiple Choice

During DNA replication, the synthesis of the new strand requires the addition of a new dNTP to the 3ʹ-OH group of the growing nucleotide strand by DNA polymerase. Which of the following provides the energy needed for this step?

• A) the template strand
• B) the energy of pentose sugar
• C) 5ʹ end of the growing DNA
• D) cleavage of two phosphate groups from the dNTP
• E) The reaction does not require an energy source.

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Definitions:

Oxidation

Oxidation is a chemical reaction in which a substance loses electrons, often resulting in rust in metals or changes in rock minerals due to exposure to oxygen and water.

Iron-bearing Minerals

Minerals that contain iron as a significant component, often influencing the rock's color and magnetic properties.

Rounded Pebbles

Small, smooth rocks that have been eroded and smoothed over time by water or other natural forces.

Shells

Shells are hard, protective outer layers created by animals, particularly mollusks such as snails, oysters, and clams, as a form of protection or body support.