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Biology Chapter on Nucleotides and RNA

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Questions and Answers

What are the three components of a nucleotide?

Nucleotides, deoxyribose sugar, amino acids

Phosphate, ribose sugar, nitrogen bases (correct)

Phosphate, glucose, nitrogen bases

Phosphate, ribose sugar, enzymes

What type of bond holds together the nitrogenous bases in DNA?

Covalent bonds

Ionic bonds

Hydrogen bonds (correct)

Hydrophobic interactions

What is the function of a ribosome in the cell?

To synthesize RNA from DNA

To transport proteins within the cell

To read mRNA and assemble amino acids into proteins (correct)

To replicate DNA

What is the role of introns in RNA?

They are non-coding regions that are removed during RNA processing Signup and view all the answers

Which of the following bases is found in RNA but not in DNA?

Uracil Signup and view all the answers

What organism cannot make their own food?

Heterotrophs Signup and view all the answers

What is the process of assembling a protein on the basis of the information in an RNA molecule?

Translation Signup and view all the answers

What is the enzyme that shuttles in nucleotides during DNA replication?

DNA polymerase Signup and view all the answers

What is the nucleotide that is substituted for Thymine in an RNA molecule?

Uracil Signup and view all the answers

What molecule temporarily stores energy in cells?

ATP Signup and view all the answers