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WorksheetsRNA and DNA Structure and Function
Total questions: 10
Worksheet time: 5mins
What is the primary role of DNA in living organisms?
Storing genetic information and coding for traits
Transporting amino acids to ribosomes
Forming the structural component of ribosomes
Carrying messages from ribosomes to the nucleus
In eukaryotic cells, where is DNA primarily located?
Cytoplasm
Ribosomes
Nucleus
Mitochondria
What is the basic building block (monomer) of nucleic acids?
Amino acid
Monosaccharide
Nucleotide
Fatty acid
Which three components make up a nucleotide?
Amino acid, sugar, and phosphate
Phosphate, sugar, and nitrogenous base
Lipid, protein, and carbohydrate
Ribose, deoxyribose, and uracil
How does the general structure of DNA differ from RNA in terms of strands?
DNA is single-stranded, while RNA is double-stranded
DNA is double-stranded, while RNA is single-stranded
Both DNA and RNA are always double-stranded
Both DNA and RNA are always single-stranded
What type of sugar is found in DNA?
Ribose
Glucose
Deoxyribose
Fructose
Which nitrogenous base is found in RNA but is replaced by Thymine in DNA?
Adenine
Guanine
Cytosine
Uracil
What is the main function of messenger RNA (mRNA)?
To transfer amino acids to the ribosome
To form the structural component of ribosomes
To carry genetic instructions from DNA to the ribosome for protein synthesis
To catalyze biochemical reactions in the cell
In DNA what Nitrogen base is hydrogen bonded to Thymine?
Adenine
Guanine
Cytosine
Deoxyribose
What enzyme is responsible for building or adding the nitrogen bases to the new DNA strand?
Helicase
Ligase
Polymerase
Primase
