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Nucleic Acids

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Questions and Answers

Which RNA molecule helps in the synthesis of proteins from amino acids?

snRNA

tRNA (correct)

mRNA

rRNA

What is the function of ribosomal RNA?

It participates in protein synthesis (correct)

It degrades enzymes

It forms the nucleus

It forms the cytoplasm

What are the building blocks of nucleic acids called?

Nucleotides (correct)

Fatty acids

Monosaccharides

Amino acids

Which nitrogen base is unique to DNA?

Thymine Signup and view all the answers

What is the purpose of nucleic acids?

To form a chemical basis for the transfer of genetic traits Signup and view all the answers

Which nitrogen bases are classified under pyrimidines?

Thymine, uracil, and cytosine Signup and view all the answers

Which type of bond is formed between the first carbon of the pentose sugar and the 9th nitrogen atom of a nitrogenous base?

Glycosidic bond Signup and view all the answers

What determines the pairings of purines and pyrimidines in DNA strands?

Difference in size Signup and view all the answers

What is the function of ATP in living cells?

Generate energy Signup and view all the answers

When was DNA first isolated by Friedrich Miescher?

1869 Signup and view all the answers

Which macromolecule is responsible for storing and expressing genetic information in cells and viruses?

Nucleic acids Signup and view all the answers

What are the two forms of nucleic acids found in nature?

DNA and RNA Signup and view all the answers

What are the three components of a nucleotide?

Phosphate group, nitrogen base, and pentose molecule Signup and view all the answers

Which pentose molecule is found in DNA?

Deoxyribose Signup and view all the answers

What is the function of the nitrogen base in a nucleotide?

Providing electrons to other atoms Signup and view all the answers