During the process of replication, a molecule of DNA unzips, forming two single strands what makes up each individual strand of DNA?
A( paired adenine and uracil bases
B( Paired thymine and guanine bases
C( sugar groups attached to individual amino acids
D( nitrogenous bases attached to a sugar- phosphate backbone

DNA is a nucleic acid that gets duplicated by replication. The single strand of DNA is made of nitrogenous bases attached to a sugar-phosphate backbone. Thus, option D is correct.

DNA is the abbreviated form of deoxyribose nucleic acid that is the major molecule involved in inheritance and genetics. DNA undergoes a replication process where the two daughter strands, semiconservative in nature are produced.

The DNA is a polymer composed of the sugar (deoxyribose) - phosphate backbone along with nitrogen bases that include adenine, thymine, cytosine, and guanine. The phosphodiester bond, hydrogen bond, and glycosidic bonds are involved in interlinking the structural framework.

Therefore, option D. the sugar-phosphate backbone linked to the nitrogenous bases makes the structure of DNA molecule.

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Group of answer choices

ribosomes

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Group of answer choices

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Question 7
What function does the nucleolus have?
Group of answer choices

synthesizes ribosomal RNA

prepares products for export from the cell

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Question 8
Which of the following is a function of glycoproteins?
Group of answer choices

to bind cells together into a functional organ

to permit cells to recognize one another

to allow cell-to-cell communication

to allow information to pass between adjacent cells

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Identify the organelle - function pairing that is mismatched.
Group of answer choices

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ribosomes - capable of producing proteins for the cell

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Question 10
Which of the following is a function of the nucleus?
Group of answer choices

prepares molecules for export from the cell

acts as the control center of the cell

manufactures molecules

assists in moving materials from one part of the cell to another

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